A commonly cited constraint to growth of the humic products industry has been the lack of a widely accepted procedure for determining humic and fulvic acid contents of commercial products. Several procedures have been used, but none is considered sufficiently quantitative, reproducible, and capable of discerning adulterants in the products.
CITATION STYLE
Lamar, R., Olk, D. C., Mayhew, L., & Bloom, P. R. (2013). Evaluation of a proposed standardized analytical method for the determination of humic and fulvic acids in commercial products. In Functions of Natural Organic Matter in Changing Environment (Vol. 9789400756342, pp. 1071–1073). Springer Netherlands. https://doi.org/10.1007/978-94-007-5634-2_198
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