华南农业大学学报2012，Vol.33Issue(2)：253-255,3.
气相色谱法检测牛奶中五氯苯酚残留量
Determination of Pentachlorophenol in Milk with GC
摘要
Abstract
A method was established for determining residue of pentachlorophenol in milk with gas chro-matography ( GC) -electron capture detector(ECD). The sample was extracted with acetone and derived with acetic anhydride. The derivative was determined by gas chromatography with electron capture detector. Good accuracy, precision and sensitivity were obtained with the method. The calibration curves of the derivative of pentachlorophenol were linear between the peak areas and the concentrations in the range of 5. 00 -500. 00 μg/L with correlation coefficients(r2) of 0. 999. The average recoveries of pentachlorophenol were 77.6% , 87. 2% and 86. 3% respectively at three spiked concentration of levels of 5,10 and 50 μg/kg, with relative standard deviations ( RSDs) less than 9. 6%. The limit of detection (LOD) for the derivative of pentachlorophenol was 2μg/kg and the limit of quantitation ( LOQ) was found to be 5 μg/kg. The study revealed that the method was suitable for the determination of pentachlomphenol in milk.关键词
气相色谱-电子捕获检测器(GC-ECD)/牛奶/五氯苯酚/衍生化Key words
gas chromatography-electron capture detector/ milk/ pentachlorophenol/ derivativing分类
农业科技引用本文复制引用
李小桥,官琼,王林,赵宁,丁焕中..气相色谱法检测牛奶中五氯苯酚残留量[J].华南农业大学学报,2012,33(2):253-255,3.基金项目
2009年农业行业标准制定项目 （）
