Analysis pesticides by chemical derivatization. III. Gas chromatographic characteristics and conditions for the formation of pentafluorobenzyl derivatives of ten herbicidal acids.
The reaction conditions to form pentafluorobenzyl derivatives of 10 herbicidal acids, at pesticide residue levels, were studied. The optimum conditions were reaction at room temperature for at least 5 hr (or overnight), using potassium carbonate solution as catalyst. The gas chromatographic characteristics of these derivatives were also studied. Nine of 10 of these derivatives can be separated on an OV-101/OV-210 gas chromatographic column.
D055598:Chemical Phenomena; D002621:Chemistry; D002849:Chromatography, Gas; D005464:Fluorobenzenes; D006540:Herbicides / Q000032:analysis*; D007202:Indicators and Reagents; D008722:Methods; D010573:Pesticide Residues / Q000032:analysis*
D005464:Fluorobenzenes; D006540:Herbicides; D007202:Indicators and Reagents; D010573:Pesticide Residues