Evaluation of XAD‐2 as a collection sorbent for 2,4‐D herbicides in air

S. O. Farwell Air Pollution Research Section, Department of Chemical Engineering, Washington State University, Pullman, Washington, 99163

F. W. Bowes Air Pollution Research Section, Department of Chemical Engineering, Washington State University, Pullman, Washington, 99163

D. F. Adams Air Pollution Research Section, Department of Chemical Engineering, Washington State University, Pullman, Washington, 99163

Abstract

A new collection method for airborne dichlorophenoxy herbicides has been developed. Amberlite XAD‐2 solid adsorbent is shown to collect 2,4‐D compounds efficiently from ambient air. The 2,4‐D esters and non‐volatile 2,4‐D are recovered selectively from the XAD‐2 by sequential solvent desorption, and the extraction procedure is compatible with electron‐capture gas Chromatographic analysis. The overall sorbent efficiencies for 2,4‐D compounds ranged from 81 to 95%.

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Evaluation of XAD‐2 as a collection sorbent for 2,4‐D herbicides in air

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Evaluation of XAD‐2 as a collection sorbent for 2,4‐D herbicides in air

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