P. R. Rexroad

Total Protein Nitrogen: Evaluation and Comparison of Four Different Methods

C. Gehrke, L. L. Wall, T. E. Neuner, 1975 .

Comparison of LECO FP-228 "nitrogen determinator" with AOAC copper catalyst Kjeldahl method for crude protein.

R A Sweeney, P R Rexroad, R. Sweeney, 1987, Journal - Association of Official Analytical Chemists.

Adequacy of Directions in Official Methods for Total and Free Water in Fertilizers

J. Caro, P. R. Rexroad, 1963 .

Quantitative analysis of cystine, methionine, lysine, and nine other amino acids by a single oxidation--4 hour hydrolysis method.

C. Gehrke, R. Zumwalt, P. R. Rexroad, 1987, Journal - Association of Official Analytical Chemists.

Pollution-reduced Kjeldahl method for crude protein.

R. Cathey, P. R. Rexroad, 1976, Journal - Association of Official Analytical Chemists.