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Outline of methods

Propachlor is extracted from plant and animal material with aqueous acetonitrile. After filtration and evaporation of the solvent, the extracted residue is hydrolyzed with base, and the hydrolysis product, NIPA, is steam distilled into dilute acid. The acid distillate is partitioned with dichloromethane. The aqueous layer is adjusted to a basic pH, and NIPA is extracted with isooctane. The extracted residues are cleaned up using a silica SPE column, and NIPA is eluted with isooctane-ethyl acetate (9 1, v/v) solvent mixture. Quantitation is by GC/NPD. [Pg.361]

Introduction Outline of method Emits and vegetables Ginned cottonseed Nutmeats Soil Water Apparatus Reagents... [Pg.1]

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See also in sourсe #XX -- [ Pg.32 ]



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