南华大学学报（自然科学版）2017，Vol.31Issue(1)：91-95,5.
气相色谱测定江永香姜中有机磷农药残留
Determination of Oganophosphorus Pesticide Residues in JiangyongSweet-smelting Ginger by Gas Chromatography
摘要
Abstract
To establish a detection method for the organophosphorus pesticides residues in Jiang Yong sweet-smelting ginger by Gas Chromatography,samples of sweet-smelting ginger were collected from Jiangyong County,Yongzhou City.The sample was extracted by acetonitrile solution containing 1% acetic acid,purified by anhydrous magnesium sulfate and sodium acetate,seperated by C18 chromatographic column,tested by matrix matching external standard method of quantitative standard solution,finally gas chromatography (GC) method was used to detect organochlorine pesticide residues in the fragrant ginger to achieve the qualitative goals.Under above conditions,the standard linear range of organochlorine pesticides was 0~1 mg/L;correlation coefficient r was above 0.99,the minimum detection limits were 0.012~0.071 mg/kg,the relative standard deviations (RSDs) were 2.22%~9.30% and the recycling test sample of average recoveries were 68.0% ~ 111.0%.The results show that this method has the merits of good purifying effects,high accuracy and precision.It is accorded with pesticide residues testing standards in sweet-smelting ginger at home and abroad.关键词
气相色谱法/有机磷农药/江永香姜/残留检测Key words
gas chromatography/organophosphorus pesticides/Jiangyong sweet-smelting ginger/residue detection分类
化学化工引用本文复制引用
罗晶晶,聂长明,刘小文,任红英,袁志辉,周姬..气相色谱测定江永香姜中有机磷农药残留[J].南华大学学报（自然科学版）,2017,31(1):91-95,5.基金项目
湖南省重点实验室开放基金项目(XNZW15C16) （XNZW15C16）
湖南省教育厅优秀青年项目(14B071) （14B071）
永州市科技计划项目(永财企字[2014]33号) （永财企字[2014]33号）
湖南省食品药品监督管理局食品药品安全科技项目(湘食药科R201522) （湘食药科R201522）
