Institute of Pesticide and Environmental Toxicology, Zhejiang University, Hangzhou 310029, People's Republic of China.
Bull Environ Contam Toxicol. 2010 Feb;84(2):236-9. doi: 10.1007/s00128-009-9881-7. Epub 2009 Sep 27.
Oxadiargyl is a commonly used herbicide in China. We developed a simple, fast, and high-throughput method employing gas chromatography with electron capture detector to determine oxadiargyl residues in food samples (rice, straws) and environmental samples (soil, water). Samples were prepared by a modified QuEChERS procedure. In this method, acetonitrile was used as the extracting solvent. The purifying step was omitted when the chromatographic conditions were optimized. Recoveries ranged from 82.9 to 112.0% for oxadiargyl in all samples, with relative standard deviation values lower than 6.2% at 0.01 mg/kg fortified concentration level.
氧乐果是中国常用的一种除草剂。我们开发了一种简单、快速、高通量的方法，采用带有电子捕获检测器的气相色谱法来测定食品样品（大米、秸秆）和环境样品（土壤、水）中的氧乐果残留。样品采用改良的 QuEChERS 法进行制备。在该方法中，乙腈被用作提取溶剂。在优化色谱条件时，省略了净化步骤。氧乐果在所有样品中的回收率在 82.9%至 112.0%之间，在 0.01 毫克/千克添加浓度水平下，相对标准偏差值低于 6.2%。
