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Determination of 14C‐Labeled Pesticides in Soils by a Dry Combustion Technique
Author(s) -
Cheng H. H.,
Farrow F. O.
Publication year - 1976
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1976.03615995004000010040x
Subject(s) - soil water , combustion , pesticide , chemistry , titration , environmental chemistry , soil test , environmental science , soil science , agronomy , inorganic chemistry , organic chemistry , biology
A dry combustion method for oxidation of 14 C‐labeled pesticides in soils and determination of total 14 C is described. The method is a modification of the procedure using a Leco high‐temperature induction furnace for oxidation and determination of total C in soils. In the modified system, the CO 2 evolved from sample oxidation is trapped in a NaOH solution, which can be analyzed for total 14 C radioassay and for total C by titrimetry.