| Abstract
| - An analytical method for detecting cymoxanil {2-cyano-N-[(ethylamino)carbonyl]-2-(methoxyimino)acetamide} residues in dried hops was developed utilizing liquid−liquid partitioning, automatedgel permeation chromatography (GPC), solid phase extraction (SPE) cleanup, and gas chromatography (GC). Method validation recoveries from dried hops were 96 ± 12, 108 ± 11, and 136 ± 8%over three levels of fortification (0.05, 0.5, and 1.0 ppm, respectively). The hop samples from threefield sites, which were treated with cymoxanil, had residue levels ranging from 0.146 to 0.646 ppm.The detection limit and the quantitation limit of the method developed in the present study were0.022 and 0.050 ppm, respectively. Keywords: Cymoxanil; fungicide; gas chromatography; hops
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