Adsorption of chlorinated pesticides from river water with XAD-2 resin.
Pesticides in river water at levels as low as parts per billion (10(12)), can be recovered by sorption on a column of XAD-2 resin, followed by elution with acetonitrile. Water is added to the acetonitrile and the pesticides are extracted by petroleum ether and determined by gas chromatography. The new procedure is more convenient to use than the solvent extraction procedure and gives comparable results for dieldrin.
Richard
J J
JJ
Ames Laboratory-USAEC Department of Chemistry Iowa State University Ames, Iowa 50010, U.S.A.
Fritz
J S
JS