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| Click on highlighted links for more detailed information on lab procedures. |
| Sample Preparation |   |   |
| Plant Tissue Analysis- P, K, Ca, Mg, Mn, Fe, Al, B, Cu, Zn, Na, Pb, Cd, Ni, Cr, Mo |
ICP Method |
1. Isaac, R.A. and W.C. Johnson, 1985, Elemental Analysis of Plant Tissue by
Plasma Emission Spectroscopy: Collaborative Study. JAOAC. 68(3), pp 499-
505. 2. AOAC Official Method 985.01, in Official Methods of Analysis of AOAC International, 16th edition, Volume I Chapter 3, p. 4. 3. AOAC Official Method 968.08 D(a), in Official Methods of Analysis of AOAC International, 16th edition, Volume I Chapter 4, p. 23. |
| Plant Tissue Analysis Extractable NH4-H |
Colorimetric-Autoanalyzer Method |
1. Mehlich, A. 1953. Determination of P, Ca, Mg, K, Na, and NH4.
North Carolina Soil Test Division (Mimeo 1953.) 2. Methods for Chemical Analysis of Water and Wastes. March 1984. EPA- 600/4-79-020. "Nitrogen, Ammonia" Method 350.1 (Colorimetric, Automated Phenate) Storet No. Total 00610, Dissolved 00608. |
| Plant Tissue Analysis - Extractable NO3-N | Colorimetric-Autoanalyzer Method |
1. Dorich, R.A. and D.W. Nelson. 1984. Evaluation of Manual Cadmium
Reduction Methods for Determination of Nitrate in Potassium Chloride
Extracts. Soil Sci. Soc. Am. J. 48:72-75. 2. Huffman, S.A. and K.A. Barbarick. 1981. Soil Nitrate Analysis by Cadmium Reduction. Comm. Soil Sci. Plant Anal. 12(1):79-89. 3. Methods for Chemical Analysis of Water and Wastes, March 1984. EPA-600/4- 79-020. Nitrogen, Nitrate-Nitrite, Method 353.2 (Colorimetric Automated, Cadmium Reduction) Storet No. Total 00630. |
| Plant Tissue Analysis - Total Nitrogen | Combustion Method |
1. Bellomonte, G. A. Constantine, and S. Giammariolo. 1987. Comparison of
modified automatic dumas method and the traditional Kjeldahl method for
nitrogen determination in infant food. JAOAC 70:227-229. 2. Colombo, B. And G. Giazzi. 1982. Total automatic nitrogen determination. Am. Lab. 14:38-45. 3. Sweeney, R. A. 1989. Generic combustion method for the determination of crude protein in feeds:Collaborative Study. JAOAC. 72:770-774. |
| Plant Tissue Analysis - Total C, S, N | Combustion Method | 1. Kirsten, W. J., 1979. Automated methods for the simultaneous determination of carbon, hydrogen, nitrogen, and sulfur, and sufur alone in organic and inorganic materials. Anal. Chem. 51:1173-1179. |
| Plant Tissue Analysis - Extractable Chloride | Colorimetric-Autoanalyzer Method | See Soil Analysis - Extractable Chloride. |
| Cotton Petiole Analysis - Extractable NO3-N | Colorimetric-Autoanalyzer Method |
1. Dorich, R.A. and D.W. Nelson. 1984. Evaluation of Manual Cadmium
Reduction Methods for Determination of Nitrate in Potassium Chloride
Extracts. Soil Sci. Soc. Am. J. 48:72-75. 2. Huffman, S.A. and K.A. Barbarick. 1981. Soil Nitrate Analysis by Cadmium Reduction. Comm. Soil Sci. Plant Anal. 12(1):79-89. 3. Methods for Chemical Analysis of Water and Wastes. March 1984. EPA- 600/4-79-020. Nitrogen, Nitrate-Nitrite, Method 353.2 (Colorimetric Automated, Cadmium Reduction) Storet No. Total 00630. |
| Cotton Petiole Analysis - Extractable P, K, Ca, Mg, Zn, Mn | ICP Method | 1. Baker, A. S., 1971. A simplified method for determining acetic acid soluble phosphorus in plant tissue. Comm. in Soil Sci. and Plant Anal. 2(3):195-200. |
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