Progress 01/01/09 to 12/31/09
Outputs
OUTPUTS: This laboratory worked on developing techniques for the analysis of a number of difficult materials this past year. Some of these items included: ICP analysis of radioactive samples, analysis of gold and silver in tissue digests, the analysis of Dysprosium and Europium by ICP, analysis of ditch water for Total Phosphorus, and quarantined soil from Haiti, Tanzania, and the Dominican Republic. The outputs are disseminated to researchers which use the results to develop reports to the community. The laboratory also trained one international student and 8 US students in the techniques of our laboratory work and mentored a number of graduate students in sample preparation techniques and analysis methods. In addition, the laboratory gave several tours to horticulture and agronomy classes from the U of MN and other Colleges and Universities. Results from the laboratory are disseminated by email or postal mail to clients. These reports often include suggestions on how to interpret the results and other information that will help the client make the best economic decision for fertilizer application that will also protect the environment. PARTICIPANTS: Nothing significant to report during this reporting period. TARGET AUDIENCES: Nothing significant to report during this reporting period. PROJECT MODIFICATIONS: Nothing significant to report during this reporting period.
Impacts
The laboratory provided analytical services for over 30 University Departments and public agencies for approximately 20,000 tests on 17,000 samples. These results help researchers to discover and learn about better ways to protect the environment and promote human health. The laboratory also provided soil tests and fertilizer recommendations to farmers, homeowners, and florists on nearly 9,000 samples. These results enable people to determine the fertility status of the soil and using this information, they can determine the proper level of fertilizer to apply to their crop. This prevents the overuse of fertilizer, which can lead to pollution of our surface water and damage to our ground water resources, or the under use of fertilizer, which could have negative economic impacts.
Publications
- No publications reported this period
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Progress 01/01/08 to 12/31/08
Outputs
OUTPUTS: This laboratory worked on developing techniques for the analysis of a number of difficult materials this past year. Some of these items included: boron and sulfate in sewage sludge, cesium in chemicalleachates, carbon in biofuels, gadolinium in animal tissue, and metals from roadway runoff. The outputs are disseminated to researchers which use the results to develop reports to the community. The laboratory also trained two international students and 4 US students in the techniques of our laboratory work and mentored a number of graduate students in sample preparation and analysis methods. In addition, the laboratory gave several tours to horticulture and agronomy classes from other Colleges and Universities. Results from the laboratory are disseminated by email or postal mail to clients. These reports often include suggestions on how to interpret the results and other information that will help the client make the best economic decision for fertilizer application that will also protect the environment. PARTICIPANTS: Not relevant to this project. TARGET AUDIENCES: Not relevant to this project. PROJECT MODIFICATIONS: Not relevant to this project.
Impacts
The laboratory provided analytical services for over 30 University Departments and public agencies for approximately 21,000 tests on 18,000 samples These results help researchers to discover and learn about better ways to protect the environment and promote human health. The laboratory also provided soil tests and fertilizer recommendations to farmers, homeowners, and florists on nearly 9,000 samples. These results enable people to determine the fertility status of the soil and using this information, they can determine the proper level of fertilizer to apply to their crop. This prevents the overuse of fertilizer, which can lead to pollution of our surface water and damage to our ground water resources, or the under use of fertilizer, which could have negative economic impacts.
Publications
- No publications reported this period
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Progress 01/01/07 to 12/31/07
Outputs
The laboratory worked on developing techniques for the analysis of a number of difficult materials this past year. Some of these items included: Gold in various animal tissues, metals in biofuel burner ash, metals in brain tissue, sodium and potassium from leachates of airport runway concrete, ash content of biofuel materials, and boron and sulfates in sewage sludge. The outputs are disseminated to researchers which use the results to develop reports to the community. The laboratory also trained two international and three US students in the techniques of our laboratory work and mentored a number of graduate students in sample preparation and analysis methods. In addition, the laboratory gave tours to two horticulture and agronomy classes from other Colleges and Universities. Results of the laboratory's results are disseminated by email or postal mail reports to the clients. These reports often include suggestions on how to interpret the results and other information
that will help the client make the best economic decision for fertilizer application that will also protect the environment.
Impacts
The laboratory provided analytical services for over 30 University Departments and public agencies for approximately 25,000 tests on 20,000 samples. These results help researchers to discover and learn about better ways to protect the environment and promote human health. The laboratory also provided soil tests and fertilizer recommendations to farmers, homeowners, and florists on nearly 9,000 samples. These results enable people to determine the fertility status of the soil and using this information, they can determine the proper level of fertilizer to apply to their crop. This prevents the overuse of fertilizer which can lead to pollution of our surface water and damage to our ground water resources or the under use of fertilizer, which could have negative economic impacts.
Publications
- No publications reported this period
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Progress 01/01/06 to 12/31/06
Outputs
The laboratory worked on developing techniques for the analysis of a number of difficult materials this past year. Some of these items included: Gold in animal tissue, Vanadium in rabbit orvaries, Ru in hydroponic water, waterholding capacity in insect growth media, Cobalt in bacteria cultures, Phosphorus absorbed on zirconia catalyst, ash in biorefinery feedstock, and nitrate/nitrite on ozone trap filters. In addition, analytical services were provided to over 30 University departments and public agencies for approximately 25,500 tests on 21,000 samples. Soil tests and fertilizer recommendations were also provided to farmers, homeowners, and florists on nearly 10,000 samples.
Impacts
This project provides support for the analytical needs of University faculty and staff, especially for unusual and difficult materials. The development of new methods for the analysis fo these materials helps to solve research problems and answer questions that promote human welfare.
Publications
- No publications reported this period
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Progress 01/01/05 to 12/31/05
Outputs
The research of the laboratory is dictated by the needs of the researchers at the University. As research proceeds, analytical methods need to adapt to the demands of the various research projects, both in terms of the analytes analyzed and the methods needed for the analysis. This provides the core of the direction for the laboratory. In addition, there are a couple of areas where the laboratory can provide leadership for analytical development. 1. The SMP buffer index1 test is widely used in the upper Midwest to determine the limestone requirement of soil. However, a major component is chromium, a hazardous chemical that makes disposal of the used solutions difficult. The laboratory will explore substitutes for this chemical in the SMP buffer that retain the effectiveness of the solution and do not pose a disposal problem. 2. There is a need for uniformity of recommendations of plant nutrients to assist regional regulatory agencies such as the NRCS, EPA and others.
The laboratory will work with faculty and other individuals to test the validity of the current recommendations and resolve some of the differences that occur.
Impacts
The principle investigator will research alternative chemical buffers that could replace chromium in the solution. These possible replacement solutions will then be tested on various soils and results compared to the results for the standard SMP. We will also work with faculty on new projects for research into plant nutrients and their effect on yield as relates to the test results for standard nutrient analysis tests.
Publications
- No publications reported this period
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Progress 01/01/04 to 12/31/04
Outputs
The laboratory worked on developing techniques for the analysis of a number of difficult materials this past year. Some of these items included: Rb in yeast, minerals in hog urine, chloride in hog diet components, metals in blood protein, metals in rat brain tissue, copper and sulfur in beef tissue, copper in a metalloenzyme, potassium in yeast extract, and chromium in freshwater mussels. In addition, analytical services were provided to over 30 University departments and public agencies for approximately 27,100 tests on 16,000 samples. Soil tests and fertilizer recommendations were also provided to farmers, homeowners, and florists on nearly 10,200 samples.
Impacts
This project provides support for the analytical needs of University faculty and staff, especially for unusual and difficult materials. The development of new methods for the analysis of these materials helps to solve research problems and answer questions that promote human welfare.
Publications
- No publications reported this period
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Progress 01/01/03 to 12/31/03
Outputs
The laboratory worked on developing techniques for the analysis of a number of difficult materials this past year. Some of these items included: Bismuth in fungal cultures, heavy metals in lignin, Calcium and Iron in tamales (food item), Silver in aluminum oxide catalysts, and Calcium in black liquor from paper processing. In addition, analytical services were provided to over 30 University departments and public agencies for approximately 25,900 tests on 21,600 samples. Soil tests and fertilizer recommendations were also provided to farmers, homeowners, and florists on 11,800 samples.
Impacts
This project provides support for the analytical needs of University faculty and staff, especially for unusual and difficult materials. The development of new methods for the analysis of these materials helps to solve research problems and answer questions that promote human welfare.
Publications
- No publications reported this period
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Progress 01/01/02 to 12/31/02
Outputs
The laboratory worked on developing techniques for the analysis of a number of difficult materials this past year. A study of food additives required the analysis of nitrogen in gum arabic and gum. Concern for food nutrition called for the analysis of phosphorus in cheese extracts. Health concerns for the food supply lead to the analysis of metals in whey protein powder. Basic researchers also asked for the analysis of bismuth solutions and the leachable chloride concentration in porous thin films. In addition, analytical services were provided to over twenty-five University departments and public agencies for approximately 36,800 tests on 21,600 samples. Soil tests and fertilizer recommendations were also provided to farmers, homeowners, and florists on 15,400 samples.
Impacts
This project provides support for the analytical needs of University faculty and staff, especially for unusual and difficult materials. The development of new methods for the analysis of these materials helps to solve research problems and answer questions that promote human welfare.
Publications
- S.A. Dee, J. Deen, R. Eliason, K.D. Rossow, C. Mahlum and C. Pijoan. 2002. Mechanical transmission of porcine reproductive and repiratory syndrome virus throughout a coordinated sequence of events during warm weather.
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Progress 01/01/01 to 12/31/01
Outputs
The laboratory worked on developing techniques for the analysis of a number of difficult materials this year. A study of lake quality called for the analysis of fluoride in trout flesh. Concern for heavy metals in CCA treated wood called for the analysis of arsenic in vegetables and soil. Odor from the waste of hog production facilities called for the analysis of compost used as a bio-filter. Concern for food quality called for the analysis of phosphorus in cheese and milk products. And concern for water quality led to a study of the metal content of a zirconia exchange resin. In addition, analytical services were provided to over twenty University departments and public agencies for approximately 44,000 tests on 27,700 samples. Soil tests and fertilizer recommendations were also provided to farmers, homeowners, and florists on 14,700 samples.
Impacts
This project provides support for the analytical needs of University faculty and staff, especially for unusual and difficult materials. The development of new methods for the analysis of these materials helps to solve research problems and answer questions that promote human welfare.
Publications
- Rehm, G., M. Schmitt, and R. Eliason. Fertilizer recommendations for agronomic crops in Minnesota. University of Minnesota Extension Service. BU-06240-5. Revised 2001.
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Progress 01/01/00 to 12/31/00
Outputs
The laboratory worked on developing techniques for the analysis of a number of difficult materials this past year. A study of apple diseases called for the analysis of dried applies with high sugar content. Concern for sodium in human diet called for the analysis of sodium in beef jerky. Odor from the waste of hog production facilities called for the analysis of sulfur in hog urine and feces. Handling the waste from sugarbeet processing plants called for the analysis of sugarbeet byproducts and byproduct amended soil. And concern for paper quality called for the analysis of lignin from a paper making production process. In addition, analytical services were provided to over twenty University departments and public agencies for approximately 36,176 tests on 21,060 samples. Soil tests and fertilizer recommendations were also provided to farmers, homeowners, and florists on 15,727 samples.
Impacts
This project provides support for the analytical needs of University faculty and staff, especially for unusual and difficult materials. The development of new methods for the analysis of these materials helps to solve research problems and answer questions that promote human welfare.
Publications
- Rehm, G., M. Schmitt, G. Randall, J. Lamb and R. Eliason. Fertilizing corn in Minnesota. University of Minnesota Extension Service FO-3790-C, Revised 2000.
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Progress 01/01/99 to 12/31/99
Outputs
With increasing concern for phosphorus run-off from the landscape, there has been interest in the ammonium oxalate extraction of soil to measure Fe, Al, and P. The laboratory worked on a method to measure this high salt extract by ICP for these three elements. With the development of alternative energy sources, a proposal to use alfalfa as a fuel source necessitated the measurement of a number of unique parameters. The laboratory worked on a method to determine volatile solids in alfalfa stems and total analysis of "charcoaled" alfalfa stems and leaves. The interest in world carbon budgets has stimulated the need to measure organic carbon in water samples with high sediment. The laboratory worked on a combustion method for measuring organic carbon in these samples. In addition, analytical services were provided to over twenty University departments and public agencies for approximately 53,000 tests on 24,000 samples. Soil tests and fertilizer recommendations were also
provided to farmers, homeowners, and florists on 13,150 samples.
Impacts
This project provides support for the analytical needs of University faculty and staff, especially for unusual and difficult materials. The development of new methods for the analysis of these materials helps to solve research problems and answer questions that promote human welfare.
Publications
- No publications reported this period
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Progress 01/01/98 to 12/31/98
Outputs
The Mehlich III soil extract can be analyzed for phosphorus by a colorimetric method or by ICP-AES. The results of these two methods can be substantially different. Studies were conducted to determine the relationship of these two phosphorus methods and the cause of the difference. A method was developed to analyze for copper, zinc, and molybdenum by ICP-AES on micro-biopsy samples of bovine liver tissue. Analysis was found to be accurate and reproducible on samples as small as 15 mg dry weight. Also, comparison studies were conducted on total nitrogen determination by the traditional kjeldahl method and a new automated combustion method. In addition, analytical services were provided to over twenty-five University departments and public agencies for approximately 55,000 tests on 25,000 samples. Soil tests and fertilizer recommendations were also provided to farmers, homeowners, and florists on 13,255 samples.
Impacts
(N/A)
Publications
- Rosen, C.J., P.M. Bierman, and R.D. Eliason. 1998. Soil Test Interpretations and Fertilizer Management for Lawns, Turf, Gardens, and Landscape Plants. BU-1731-F University of Minnesota Extension Service.
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Progress 01/01/97 to 12/31/97
Outputs
Studies were conducted on the efficiency of microwave digestion for plant material and methods to get total digestion with the best metal (especially iron) recovery. In addition, a method was developed to digest carbonized alfalfa stems by microwave. We also investigated the use of internal standards for water analysis on an axial ICP-AES. This instrument uses a segmented array charge coupled device detector making over 5000 spectral lines available to the analyst. Thus line selection and internal standards become very important at the part per trillion concentrations that are measured. In addition, analytical services were provided to over twenty-five University departments and public agencies for 58,435 tests on 26,807 samples. Soil tests and fertilizer recommendations were also provided to farmers, homeowners, and florists on 14,235 samples.
Impacts
(N/A)
Publications
- Dancer, W.S., R. Eliason, and S. Lekhakul. Microwave assisted soil and waste dissolution for estimation of total phosphorus. Poster presented at the 1997 International Soil and Plant Analysis Symposium.
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Progress 01/01/96 to 12/30/96
Outputs
Studies were conducted on the hydrolizable NH3 from soil samples with different acid strengths and reflux times for evaluating the feasibility of the test for predicting mineralizable N from soil. Methodology improvement and quality control were instituted for the Optima 3000 ICP-AES, by improving interference corrections and developing methods for sub- parts per million analysis. We have continued to explore the use of the AB-DTPA Universal extract for Minnesota soils, since the Mehlich III Universal extract has severe limitations on the high pH western Minnesota soils. In addition analytical services were provided to over thirty University departments and public agencies for 53,789 tests on 25,607 samples (5645 plant, 8967 soil, 93456 water, 1267 ICP-AES, and 1978 other material types). Soil tests and fertilizer recommendations were also provided to farmers, homeowners, and florists on 14,238 samples.
Impacts
(N/A)
Publications
- Rosen, C.J. and R. Eliason. Nutrient Management for Commercial Fruit & Vegetable Crops in Minnesota. Minnesota Extension Service No. BU-5886-E.
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Progress 01/01/95 to 12/30/95
Outputs
The laboratory continued studies on total phosphorus methodologies, expanding toinclude trials using international exchange samples. The laboratory worked with researchers on the analysis of leachable boron from fertilizer materials to track ground water contamination, and the analysis of tin in wood samples for composting studies. The laboratory also purchased a new generation ICP-AES in preparation for studies on improving ICP analytical quality control, interference corrections and use of internal standards during analysis. The laboratory has continued work on the universal extractant Mehlich III for soil fertility analysis in Minnesota and its calibration for fertilizer recommendations. In addition, analytical services were provided to over thirty University departments and public agencies for 56,989 tests on 28,619 samples (5735 plant, 9991 soil, 9553 water, 1475 ICP-AES, and 1865 other material types). Soil Tests and fertilizer recommendations were also provided
to farmers, homeowners, and florists on 13396 samples.
Impacts
(N/A)
Publications
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Progress 01/01/94 to 12/30/94
Outputs
Analytical services were provided to over thirty-five University departments andpublic agencies for 51,338 tests on 24,130 samples (8,818 plant; 8,712 soil; 3,935 water; 1,568 ICP-AES (elemental analysis on various materials) and 1,097 other). Soil tests and fertilizer recommendations were also provided to farmers, homeowners and florists on 13,853 samples. The laboratory continued studies on the chemical and physical analysis of municipal waste composts from eight composting facilities in the state supported by the Office of Waste Management through a private contractor. Studies were also performed to compare the recovery efficiency of the traditional dry ash method for plant analysis and a microwave digestion method that would retain those elements normally volatilized by ashing. The laboratory also is working on the applicability of the universal extractant Mehlich III for soil fertility analysis in Minnesota and its calibration for fertilizer recommendations.
Impacts
(N/A)
Publications
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Progress 01/01/93 to 12/30/93
Outputs
Analytical services were provided to over thirty-five university departments andpublic agencies for 52,387 tests on 24,338 samples (9,385 plant tissue, 8,465 soil, 5,118 water, 1,370 other). Soil tests and fertilizer recommendations were also provided to farmers, homeowners and florists on 14,733 samples. Studies were performed to find an alternative test method for total phosphorus in soils as a replacement for the standard test that uses hazardous perchloric acid. The alternative test involves the use of the EPA 3051 microwave/nitric acid digestion method for metals, but modified to include a dry ashing pretreatment step at 485 C in a muffle furnace to achieve a more complete oxidation or organic matter. In other studies, chemical and physical analysis are being developed on municipal waste composts from eight composting facilities in the state supported from the Office of Waste Management through a private contractor.
Impacts
(N/A)
Publications
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Progress 01/01/92 to 12/30/92
Outputs
Analytical services were provided to over thirty-five University Departments andPublic Agencies for 30,598 tests on 22,803 samples (10,303 plant tissue 7,745 soil, 2,513 water, 2,242 other). Soil tests were also provided to farmers, homeowners and florists on 15,775 samples. Studies comparing Mehlich-3 (M3), Bray-P1 and NaHCO(subscript 3) soil tests are continuing. The M3 extractant was found equally sensitive to the other two tests in predicting corn grain yield and leaf-P on a Webster clay loam soil 8-19 years after heavy applications of P. The r(superscript 2) between M3 and the other two tests was 0.982. Studies with M3 also compared extractable P between manured and non-manured soils. Results from residual manured soils suggested that the ICP emission spectroscopy method may be measuring small amounts of soluble organic-P from residual manured soils, but this observation was not found on recently manured soils. Joint studies with the University of California at
Davis were performed using microwave digestion and elemental analysis of plants by ICP. The method used 500 mg of sample, 0.5 mL of nitric acid and 2.0 mL of hydrogen peroxide. Ca, Mg, P, S, B, Zn, Cu, Fe and Mn were found to be quantitative and highly reproducible across samples and between the five laboratories in the study.
Impacts
(N/A)
Publications
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Progress 01/01/91 to 12/30/91
Outputs
Inorganic analytical chemistry services were provided to researchers in over thirty-five University Departments, Branch Stations, and Public Agencies on 17,553 samples for 36,640 tests. The number of sample types analyzed were: 7,288 plant tissue, 6,564 soil, 2,458 water, and 1,243 animal tissue, food and other sample types. Soil testing and recommendations were also provided to farmers, homeowners and floriculturalists on 17,960 samples. Studies continued on the collaborative evaluation (NCR-13) of universal soil extracts for measuring "available " plant nutrients. Mehlich III and AB-DTPA soil tests for "available" phosphorus were compared to Bray-P1 and Olsen-P tests at P rate trials on four calcareous soil sites. At the most P deficient site, Mehlich III showed a regression similar to that of Olsen and AB-DTPA when correlated with corn grain yield and ear leaf-P on soils with CaCO(3) equivalent levels as high as 14% CaCO(3). In contrast, Bray-P1 was unrelated to
these plant response variables at CaCO(3) levels of more than 7%. The AB-DTPA test was least influenced by high carbonate levels, followed by Olsen-P, Mehlich III, and Bray-P1. At carbonate levels exceeding 7%, AB-DTPA was highly correlated (r=0.844) with corn grain yields, followed by "r" values of 0.699 for Olsen-P, and 0.635 for Mehlich III; while the "r" value for Bray-P1 was only 0.047 and non-significant.
Impacts
(N/A)
Publications
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Progress 01/01/90 to 12/30/90
Outputs
Inorganic analytical chemistry services were provided to researchers in over thirty-five University Departments, Branch Stations, and Public Agencies on 19,105 samples for 28,084 total tests. The number of samples per sample type were: 9,558 plant tissue, 7,046 soil, 1,216 water, and 1,285 on animal tissue, food, and other. Soil testing and recommendations were also provided to farmers, homeowners, and fluriculturalists on 20,023 samples. Soil extraction studies for available nutrients were performed on selected soil series samples comparing Mehlich III and AB-DTPA extractants, with conventional tests for NCR-13 collaborative effort to determine if these two "Universal" extractants could be alternative methods in the North Central Region R(superscript 2 )'s of 0.85 and higher were found for P, K, and Zn across twelve soil series. Correlations were poor for Fe, Mn, and Cu. Comparisons were also made on 25 soil check samples from the NCR-13 member states for P and K. An
R(superscript 2 ) of 0.98 was found between ammonium acetate K and Mehlich III, and 0.96 r AB-DTPA. Bray P1 and Mehlich III had an R(superscript 2 ) of 0.93, but for Olsen's and AB-DTPA, the R(superscript 2 ) was only 0.53. The next step will be to include yield data in these comparisons. A method for the determination of A1, Si, Fe, Ca, and Mg in clay slurries by direct aspiration into an ICP emission spectrometer has been established, and studies on microwave digestion continue for analysis by ICP spectrometry.
Impacts
(N/A)
Publications
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Progress 01/01/89 to 12/30/89
Outputs
Analytical chemistry services were provided by the Research Analytical Laboratory to over thirty University units, Branch Experiment Stations and Public Agencies. Elemental analysis was performed on plant tissue (9727), soil (7181), water (1274), peat, compost, animal tissue, foods, feeds, fertilizer, etc. (3998). 22180 samples were submitted for 33315 determinations. The lab also provided soil testing for farmers, floriculturalists and homeowners on 18627 samples. New database software for soil testing and fertility recommendations for farms, lawns and gardens has also been developed. Preliminary studies on method development have shown microwave digestion a preferred method for digesting soil and biological materials for arsenic, and work continues on determining the optimum parameters of sample/acid ratios, power and time settings for a variety of materials and elements. Significant improvements in the recovery of macroelements by ICP spectroscopy of clay
suspensions have been made by modification of the spray chamber and use of an internal standard. Experiments have been initiated to see if the standard "Spurway" greenhouse media extraction can be modified to more effectively reflect the plant available fraction of nutrients. Several micronutrients were also experimentally extracted on over 2000 commercial samples to evaluate the possible use of those values for diagnostic purposes. Possibilities were found for Fe, Mn, Zn, and B, but not for copper.
Impacts
(N/A)
Publications
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Progress 01/01/88 to 12/30/88
Outputs
Analytical chemistry services were provided by the Research Analytical Laboratory to over thirty University Departmentts, Colleges, Branch Experiment Stations, City, County, State and Federal Agencies. Elemental analysis were performed on plant tissue, soil, water, peat, compost, animal tissue, foods, feeds, fertilizer and other materials. The total number of research samples submitted was 24,384 for 34,313 determinations. The laboratory purchased a new ICP spectrometer with 27 element capability. The laboratory provided consultation to students, University and Public Agency staff, participated in laboratory exercises of classes in Food Science, Botany and Soil Science, hosted tours of the facility for several student groups, visiting scientists and new extension agents. This facility also includes the Soil Testing Laboratory, which provided additional soil testing services to farmers, floriculturalists, and the urban community on 21,079 samples. The lab also
gave two months of training to a Moroccan student. RESEARCH SAMPLES ANALYZED: Plant material 12,011; Soil 7,457; Water 2,439; and Animal, food & other 2,477.
Impacts
(N/A)
Publications
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Progress 01/01/87 to 12/30/87
Outputs
Analytical chemistry services were provided by the Research Analytical Laboratory to over thirty University Departments, Colleges, Branch Experiment Stations, City, County, State and Federal Agencies. Elemental analysis were performed on plant tissue, soil, water, peat, compost, animal tissue, foods, feeds, fertilizer and other materials. The total number of research samples submitted was 33,811 for 49,959 determinations. Of this amount, 19,797 samples were analyzed on the simultaneous multielement inductively coupled plasma (ICP) emission spectrometer. The laboratory provided consultation to students, University and Public Agency staff, participated in laboratory exercises of classes in Food Science, Botany and Soil Science, hosted tours of the facility for several student groups, visiting scientists and new extension agents. This facility also includes the Soil Testing Laboratory which provided additional soil testing services to farmers, floriculturalists, and
the urban community on 19,956 samples. RESEARCH SAMPLES ANALYZED: Plant material = 19,293. Water = 4,185. Soil = 8,315. Animal, food & other = 1,253.
Impacts
(N/A)
Publications
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Progress 01/01/86 to 12/30/86
Outputs
Analytical chemistry services were provided by the Research Analytical Laboratory to over thirty University Departments, Colleges, Branch Experiment Stations, City, County, State and Federal Agencies. Elemental analysis were performed on plant tissue, peat, compost, soil, animal tissue and waste products, foods, feeds, fertilizer, water, and other materials. The total number of research samples submitted was 25,814 for 36,118 determinations. Of this amount 16,786 samples were analyzed on the simultaneous multielement inductively coupled plasma (ICP) emission spectrometer. The laboratory provided consultation to students, University and Public Agency staff, participated in laboratory exercises of several classes of Food Science, Botany, and Soil Science classes, hosted tours of the facility for several student groups, visiting Scientists and new Extension Agents. This facility also includes the Soil Testing Laboratory which provided additional soil testing services
to armers, floriculturalists, and Urban community on 19,962 samples. The laboratory also provided 3 months of training to a soil testing Laboratory Supervisor from I.A.V. Hassan II Agricultural Institute at Rabat, Morocco through the Minnesota-AID project.
Impacts
(N/A)
Publications
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Progress 01/01/85 to 12/30/85
Outputs
Analytical chemistry services were provided to over thirty University Departments, colleges, Branch Exp. Sta., City, County, State and Federal Agencies. Elemental analysis were performed on plant tissue, peat, compost, soil, animal materials, foods, feeds, water, and other materials. The total number of samples submitted in 1985 was 21,408 for 29,349 determinations. Of this amount, 13,567 samples were analyzed on the multi-element inductively coupled plasma (ICP) emission spectrometer. The laboratory provided consultation to students, University and Public Agency staff, participated in laboratory exercises of several classes, hosted tours of the facility for students groups and visiting scientists. The laboratory acquired a Rapid Continuous flow (RFA) analyzer and has been refining methodology for this system. A paper was presented on RFA at the Tenth Annual Soil and Plant Analysts workshop in St. Louis in October. This investigator was chairman of the
subcommittee on Plant Analysis in the NCR-13 Committee on Soil Testing, conducted a Collaborative Study on molybdenum and other selected elements among the member States and presented the findings at the Annual Committee Meeting in St. Louis in October. The Soil Testing Laboratory which provides soil testing services to farmers, gardeners, green house operators, nurserymen and others, was physically transferred to this Research Analytical Laboratory facility in September.
Impacts
(N/A)
Publications
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Progress 01/01/84 to 12/30/84
Outputs
Analytical Chemistry Services were provided to cover thirty University Departments, Colleges, Agri. Branch Sta., City, State & Federal Agencies. Analyses were performed on plant material, peat, soil, animal tissue, foods, water and other materials. The total number of samples submitted in 1984 was 15,939 for a total of 20,925 separate determinations. Of this figure, 11,251 samples were analyzed on the ICP Emission Spectrometer. The laboratory provided consultation to students, university and government staff; hosted lab tours for student groups, foreign and out-of-state scientists. Research and publication by the laboratory was to advance the quality of ICP data between Laboratories. The laboratory director is an active participant in NCR-13 activities, serving as chairman of the sub-committee on plant analysis. A Colloquim for graduate students was conducted on "Instrumentation Capabilities for Research" for '84 Fall Quarter.
Impacts
(N/A)
Publications
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Progress 01/01/83 to 12/30/83
Outputs
Analytical Chemistry Services were provided to over thirty University Departments, Colleges, Agri. Branch Sta., City, State & Federal Agencies. Analyses were performed on plant material, peat, soil, animal tissue, foods, water and other materials. The total number of samples submitted in 1983 was 22,430 for a total of 34,498 separate determinations. Of this figure, 15,932 samples were analyzed on the ICP Emission Spectrometer. The laboratory provided consultation to students, university & government staff; hosted lab tours for student groups, foreign & out of state scientists. Research conducted by the laboratory was to improve the quality of data. The laboratory conducted a collaborative study on plant tissue with other Exp. Sta. Laboratories; participated in collaborative studies with the American Horticultural Society and another with AOAC.
Impacts
(N/A)
Publications
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Progress 01/01/82 to 12/30/82
Outputs
Analytical Chemistry Services were provided to over thirty University departments, colleges, Agri. Branch Sta., City, State and Federal Agencies. Analyses were performed on plant material, peat, soil, animal tissue, blood and wastes, foods and water. The total number of samples submitted between Jan., 1982 and Nov. 30, 1982 was 20,109 for a total of 29,386 separate determinations. Of this number, 13,823 samples were analyzed on the ICP Emission Spectrometer. The laboratory also provided consultation to students, university and government staff; hosted lab tours for student groups, foreign and out of state scientists. Research conducted by the laboratory was to improve analytical methods. Participated in a collaborative sample exchange study for trace metals in soil extracts with members of NCR-13 Soil Testing Subcommittee.
Impacts
(N/A)
Publications
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Progress 01/01/81 to 12/30/81
Outputs
Analytical Chemistry Services were provided to over thirty University departments, colleges, Agri. Branch Sta., City, State and Federal Agencies. Analyses were performed on plant material, peat, soil, animal tissue, blood and wastes, foods and water. The total number of samples submitted were 30,454 for a total of 40,702 separate determinations. Of this number, 19,740 samples were analyzed on the ICP Emission Spectrometer. The laboratory also provided consultation to students, university and government staff; hosted lab tours for student groups, foreign and out of state scientists. Research conducted by the laboratory was to improve analytical methods including the development of improved ICP software in addition to the establishment of an ICP data transfer link from the ICP Spectrometer computer via an Apple computer to the University Cyber computer. This link puts the customer ICP data into the Central System for access by university staff including branch
stations. A scientific paper by a laboratory staff member on this subject was presented at the Int. Conference on Dev. in Atomic Plasa Spectrochemical Analysis, Orlando, Fla., Jan. 82.
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Progress 01/01/80 to 12/30/80
Outputs
Analysis of the elemental content of plant material, soil, water and miscellaneous biological materials, (foods, feeds, blood, tissue, urine, feces, etc.), were completed for 17 University departments, colleges, AGr. Exp. Stn. and several state and federal agencies. The total number of samples analyzed was 32,939. The total number of separate analytical determinations was 43,835. Twenty-two thousand thirty-seven of these samples were analyzed on the Agricultural Experiment Station-supported emission spectrograph. The lab has purchased and installed a LECO sulfur and carbon analyzer from funds provided by a NSF grant in Ecology to the value of $37,000. The lab has also purchased and installed a dual channel Atomic Absorption Spectrophotometer with a graphite furnace with funds provided by the Experiment Station and the Department of Soil Science.
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Progress 01/01/79 to 12/30/79
Outputs
Analysis of the elemental content of plant material, soil, water and miscellaneous biological materials (foods, feeds, blood, tissue, urine, feces, etc.) were completed for 17 University departments, colleges, Agr. Expt. Sta. and several state and federal agencies. The total number of samples analyzed were 46,646. The total number of separate analytical determinations was 80,130. Thirty thousand eight hundred thirty-five of these samples were analyzed on the Agr. Expt. Sta. - supported emission spectrograph. Submitted a paper on ICP Atomic Emission Analysis of Plant Tissue and Soil Extracts for presentation and publication at the 1980 Winter Conference on Developments in Atomic Plasma Spectrochemical Analyses at San Juan, Puerto Rico, Jan. 6-12, 1980.
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Progress 01/01/78 to 12/30/78
Outputs
Analysis of the elemental content of plant material, soil, water and miscellaneous biological materials (foods, feeds, blood, tissue, urine, feces, etc.) were completed for 17 University departments, colleges, Agr. Expt. Stn., and several state and federal agencies. The total number of samples analyzed were 39,444. The total number of separate analytical determinations was 76,477. Twenty-one thousand ninety-seven of these samples were analyzed on the Agricultural Experiment Station-supported emission spectrograph. The laboratory also built a computer controlled titrator for routine Kjeldahl analysis which is superior to and less expensive than commercial models. A poster session on studies we have done with the plasma spectrometer was presented at the American Society of Agronomy meeting in Chicago, December 6, 1978.
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Progress 01/01/77 to 12/30/77
Outputs
Analysis of the elemental content of plant material, soil, water and miscellaneous biological materials (foods, feeds, blood, tissue, urine, feces, etc.) were completed for 17 University departments, colleges, Agr. Expt. Sta., and several state and federal agencies. The total number of samples analyzed was 33,019 or a total of 77,943 separate analytical determinations. Of this number 19,581 samples were analyzed on the Agricultural Experiment Station supported emission spectrograph - 8229 of these samples were run on the new Inductively Coupled Plasma emission spectrograph. The new Inductively Coupled Plasma emission spectrometer was put into service this past year. Detailed studies were made to explore and measure instrumental parameters and preparation techniques in order to maximize performance. All practical interelement spectral interferences were also measured and their corrections entered into the instrument software.
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Progress 01/01/76 to 12/30/76
Outputs
Analysis of the elemental content of plant material, soil, water and miscellaneous biological materials (foods, feeds, blood, tissue, urine, feces, etc.), were completed for 17 University departments, Colleges, Agr. Expt. Sta., and several state and federal agencies. The total number of samples analyzed was 36, 133 or a total of 90,846 separate analytical determinations. Of this number 17,782 samples were analyzed on the Agricultural Experiment Station supported emission spectrograph.
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Progress 01/01/75 to 12/30/75
Outputs
Analysis of the elemental content of plant material, soil, water and miscellaneous biological materials (foods, feeds, blood, tissue, urine, feces, etc.), were completed for 17 University departments, colleges, Agr. Expt. Sta., and several state and federal agencies. The total number of samples analyzed was 32,504 or a total of 81,039 separate analytical determinations. Of this number 14,506 samples were analyzed on the Agricultural Experiment Station supported emission spectrograph.
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Progress 01/01/74 to 12/30/74
Outputs
Analysis of the elemental content of plant and animal tissues, soil extracts andmisc. biological materials (water, feeds, blood, bone, animal wastes, etc.), were completed for 13 departments and several inter-departmental research projects within the Institute of Agri. and College of Biological Sciences. Total number of samples analyzed was 14, 984.
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Progress 01/01/73 to 12/30/73
Outputs
Analysis of the elemental content of plant and animal tissues, soil extracts andmisc. biological materials (water, feeds, blood, bone, animal wastes, etc.), were completed for 11 departments and several inter-departmental research projects within the Institute of Agr. and College of Biological Sciences. Totalnumber of samples analyzed was 14,907. Increased interest in analysis of animalwaste products was observed, with approximately 10% of the total samples submitted in this category. Interest in heavy metal analysis (especially Cd, Cr, Cu, Mn, Ni, Pb, Zn) of plant tissue and sewage wastes increased. Approximately 20% of all samples analyzed involved research of this nature. It is anticipated analytical services in both of the above areas will increase withcurrent interest in pollution control research.
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Progress 01/01/72 to 12/30/72
Outputs
Analysis of the elemental content of plant and animal tissues, soil extracts andmisc. biological materials (water, feeds, blood, bone, animal wastes, etc.) werecompleted for 11 departments within the Institute of Agriculture and the Collegeof Biological Sciences. Total number of samples analyzed was 13,726. Participation was continued in a study with 11 other labs and the National Bureau of Standards to establish standard analytical techniques and methods for inclusion in the Association of Official Agriculture Chemists (A.O.A.C.) handbook for spectrographic analysis of plant tissue and soil extracts. A second objective of this study is to establish standard quantitative analysticalvalues for six types of plant tissue. Once established, these plant tissue standards will be made available by NBS to all analystical laboratories.
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