食品工业科技2012，Vol.33Issue(22)：78-80,3.
顶空气相色谱法测定玉米中的乙烯利残留
Determination of ethephon residues in maize samples by headspace gas chromatography
黄玉婷 1邵华 1杨丽华 1李敏杰 1杜欣蔚 1金茂俊 1金芬 1王静1
作者信息
- 1. 农业部农产品质量安全重点实验室,中国农业科学院农业质量标准与检测技术研究所,北京100081
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摘要
Abstract
A headspace-gas chromatography-flame ionization detector(HS-GC-FID) method was used to determine the ethephon residues in maize samples and the influence of different headspace and chromatographic conditions on determination was analyzed,finally a headspace-gas chromatography method was developed for the analysis of ethephon in maize matrix.Maize samples were firstly extracted by methanol,then concentrated after centrifuging,and finally detected by the HS-GC-FID method.The linearity was good and the correlation coefficients(R2) was 0.9999.Recovery experiments were conducted and the average recoveries were from 72.01% to 90.85% with relative standard deviation varying from 1.07% to 5.70%.The detection limit of the method was 0.1mg/kg.The result obtained indicated that this method was simple and safe with satisfying recovery,and therefore it was suitable for the determination of ethephon residues in maize samples.关键词
玉米/乙烯利/顶空气相色谱法Key words
maize/ethephon/HS-GC-FID分类
轻工纺织引用本文复制引用
黄玉婷,邵华,杨丽华,李敏杰,杜欣蔚,金茂俊,金芬,王静..顶空气相色谱法测定玉米中的乙烯利残留[J].食品工业科技,2012,33(22):78-80,3.
