GAS-LIQUID-CHROMATOGRAPHIC DETERMINATION OF ALACHLOR (2-CHLORO-2',6'-DIETHYL-N-(METHOXYMETHYL)-ACETANILIDE) HERBICIDE RESIDUES IN CORN AND SOYBEANS

  • 1 January 1976
    • journal article
    • research article
    • Vol. 59  (4) , 859-861
Abstract
A method was developed for the extraction and determination of alachlor (2-chloro-2'',6''-diethyl-N-(methoxymethyl)-acetanilide) residues in green corn and soybeans. Residues are extracted with acetonitrile and cleaned up on a Florisil column. The methylene chloride extract is sufficiently clean for electron capture GLC analysis and for verification by TLC. Average recoveries of spiked samples (0.2 ppm) were 69 and 82% for corn and soybeans, respectively. This procedure could be useful for the detection of the parent compound in these crops soon after field application, but it does not detect metabolites.

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