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高效液相色谱法和高效液相色谱-质谱/质谱法测定荔枝中对氯苯氧乙酸(钠)
引用本文:钟莉萍,徐敦明,方恩华,张志刚,陈鹭平,林立毅,周昱. 高效液相色谱法和高效液相色谱-质谱/质谱法测定荔枝中对氯苯氧乙酸(钠)[J]. 检验检疫科学, 2010, 20(2): 24-27
作者姓名:钟莉萍  徐敦明  方恩华  张志刚  陈鹭平  林立毅  周昱
作者单位:厦门出入境检验检疫局,福建厦门,361026
基金项目:福建省自然基金青年创新项目,国家质检总局科技项目,厦门市科技计划项目 
摘    要:建立了荔枝中对氯苯氧乙酸(钠)残留量的液相色谱和液相-串联质谱检测方法,采用碱性水提取,利用二氯甲烷液液萃取进行净化,用液相色谱方法在280 nm检测,检出限为0.02 mg/kg。在负离子模式下进行液质串联质谱检测,检出限为0.01 mg/kg。本方法的添加回收率在78.2%~106.7%,变异系数为2.0%~12.2%。回收率、检测限等技术参数均能满足相关检测要求。本方法应用于65个实验样品的检测,其中有两个样品为阳性,含量分别为0.032 mg/kg及0.026 mg/kg。

关 键 词:对氯苯氧乙酸钠  液相色谱法  液相-串联质谱法

Determination of(Sodium) Parachlorophenoxy Acetate in Lichee by High-Performance Liquid Chromatography and Liquid Chromatography/Tandem Mass Spectrometry
Zhong Liping,Xu Dunming,Fang Enhua,Zhang Zhigang,Chen Luping,Lin Liyi,Zhou Yu. Determination of(Sodium) Parachlorophenoxy Acetate in Lichee by High-Performance Liquid Chromatography and Liquid Chromatography/Tandem Mass Spectrometry[J]. Inspection and Quarantine Science, 2010, 20(2): 24-27
Authors:Zhong Liping  Xu Dunming  Fang Enhua  Zhang Zhigang  Chen Luping  Lin Liyi  Zhou Yu
Affiliation:Zhong Liping,Xu Dunming,Fang Enhua,Zhang Zhigang,Chen Luping,Lin Liyi,Zhou Yu(Xiamen Entry-Exit Inspection , Quarantine Bureau,Xiamen,Fujian,361026)
Abstract:A sensitive and selective analytical method for the determination of(sodium) parachlorophenoxy acetate(sodium 4-CPA) in lichee by high-performance liquid chromatography(HPLC) and liquid chromatography/tandem mass spectrometry(LC-MS/MS) was developed.The sample was extracted with water(pH 10) and the extract was cleaned up with dichloromethane.The LOQs were 0.02 and 0.01 mg/kg for HPLC and LC-MS/MS,respectively.The RSDs of recovery for indoxacarb were 2.0 %-12.2 % in lichee.Six repetitive determinations of r...
Keywords:(Sodium) parachlorophenoxy Acetate  High-Performance Liquid Chromatography(HPLC)  Liquid Chromatography/Tandem Mass Spectrometry(LC-MS/MS)  
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