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Microcombustion Method for the Determination of Carbon‐14‐Labeled Pesticide Residues in Soil
Author(s) -
Beard W. E.,
Guenzi W. D.
Publication year - 1975
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/sssaj1975.03615995003900010019x
Subject(s) - pesticide , environmental chemistry , liquid scintillation counting , carbon fibers , soil water , chemistry , combustion , carbon 14 , total organic carbon , environmental science , base (topology) , chromatography , soil science , agronomy , materials science , organic chemistry , mathematics , physics , quantum mechanics , composite number , composite material , biology , mathematical analysis
A dry combustion procedure commonly used for total carbon analysis was modified and used to determine the concentration of 14 C‐labeled pesticides in soil. Modifications included replacement of the Ascarite® 3 CO 2 trap with a solution of an organic base compatible with liquid scintillation solvents, and minor carrier gas flow changes. Recovery of three pesticides from four soils ranged from 83 to 99% and averaged 94%.