PMID: 11312760Apr 21, 2001Paper

Gas chromatographic-mass spectrometric method for the analysis of dimethomorph fungicide in dried hops

Journal of Agricultural and Food Chemistry
Mathew J Hengel, Takayuki Shibamoto

Abstract

An analytical method for the determination of dimethomorph [(E,Z)-4-[3-(4-chlorophenyl)-3-(3,4-dimethoxyphenyl)acryloyl]morpholine] residues in dried hops was developed utilizing liquid-liquid partitioning, automated gel permeation chromatography (GPC), Florisil and aminopropyl solid phase extraction (SPE) column cleanups, and gas chromatography (GC) with mass selective detection (MSD). Method validation recoveries from dried hops ranged from 79 to 103% over four levels of fortification (0.1, 1.0, 5.0, and 20 ppm). Control and dimethomorph-treated hop samples collected from three field sites had residue levels of <0.10 and 4.06-17.32 ppm, respectively. The method was validated to the limit of quantitation at 0.10 ppm. The limit of detection for this method was 0.045 ppm.

Citations

Mar 15, 2003·Shokuhin eiseigaku zasshi. Journal of the Food Hygienic Society of Japan·Masahiro OkihashiShinjiro Hori
Sep 12, 2009·Pest Management Science·Pieter SpanogheMarie-Christine Van Labeke
Jul 14, 2010·Journal of Mass Spectrometry : JMS·Bernhard Mayer-HelmJutta Pani
Sep 10, 2015·Analytical Chemistry·Mosotho J GeorgeD Bradley G Williams
Mar 22, 2015·Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences·Xuanwei XuYueru Li
Oct 31, 2014·Environmental Science and Pollution Research International·O F OlorundareB B Mamba
Apr 14, 2021·Environmental Science and Pollution Research International·Lihua YangPing Zhu
Nov 24, 2005·Journal of Agricultural and Food Chemistry·Ana AguileraAntonio Valverde

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