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  • Title: Analysis pesticides by chemical derivatization. III. Gas chromatographic characteristics and conditions for the formation of pentafluorobenzyl derivatives of ten herbicidal acids.
    Author: Chau AS, Terry K.
    Journal: J Assoc Off Anal Chem; 1976 May; 59(3):633-6. PubMed ID: 1270392.
    Abstract:
    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.
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