Abstract
A method is described for the determination of 3,6-dichloropicolinic acid in sugar beets using a gas chromatographic method with either a capillary column and electron capture detection or a packed column and a Hall electrolytic conductivity detector. 3,6-Dichloropicolinic acid was extracted from sugar beets by potassium hydroxide and after partitioning in ether, derivatized as its methyl ester by diazomethane. The sensitivity of the method is ca. 0.05 mg/kg of 3,6-dichloropicolinic acid.
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