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当前位置: 首页 > 文章 > 气相色谱-串联质谱法快速测定水果中咪鲜胺及其代谢物2,4,6-三氯苯酚的残留量 食品科学 2015,36 (12) 213-217
Position: Home > Articles > Rapid Determination of Residues of Prochloraz and Its Metabolite 2,4,6-Trichlorophenol in Fruits Using Gas Chromatography with Tandem Mass Spectrometry FOOD SCIENCE 2015,36 (12) 213-217

气相色谱-串联质谱法快速测定水果中咪鲜胺及其代谢物2,4,6-三氯苯酚的残留量

作  者：
卢俊文;李蓉;杨芳;黄思允;陈丽斯
单  位：
中山出入境检验检疫局
关键词：
气相色谱-串联质谱;基质分散固相萃取;咪鲜胺;2,4,6-三氯苯酚;水果;残留
摘  要：
目的:建立基质分散固相萃取-气相色谱-串联质谱法快速测定水果中咪鲜胺及其代谢物2,4,6-三氯苯酚残留量的方法。方法:采用以乙腈作提取剂、以N-丙基乙二胺和十八烷基硅烷键合硅胶(C18)作为混合固相基质分散萃取净化剂的前处理方法,并利用气相色谱-串联质谱在多反应离子监测模式条件下进行检测,用基质匹配标准品的外标法定量。结果:咪鲜胺及其代谢物2,4,6-三氯苯酚在0.004~0.400 mg/kg范围内线性关系均良好,相关系数分别为0.999 4和0.999 2;在3个添加水平(0.01、0.02、0.10 mg/kg)范围内的平均回收率分别为80.1%~101.5%和79.0%~97.4%,相对标准偏差分别为2.8%~6.8%和2.0%~6.0%,方法的定量限分别为0.004 mg/kg和0.005 mg/kg。结论:该方法前处理简单快速、灵敏度高、测定线性范围宽,可用于水果中咪鲜胺及其代谢物2,4,6-三氯苯酚残留的快速测定。
译  名：
Rapid Determination of Residues of Prochloraz and Its Metabolite 2,4,6-Trichlorophenol in Fruits Using Gas Chromatography with Tandem Mass Spectrometry
作  者：
LU Junwen;LI Rong;YANG Fang;HUANG Siyun;CHEN Lisi;Zhongshan Entry-Exit Inspection and Quarantine Bureau;
关键词：
gas chromatography with tandem mass spectrometry(GC-MS-MS);;matrix dispersive solid-phase extraction;;prochloraz;;2,4,6-trichlorophenol;;fruit;;residue
摘  要：
Purpose: To develop a rapid method for the determination of residues of prochloraz and its metabolite, 2,4,6-trichlorophenol, in fruits using matrix dispersive solid-phase extraction and gas chromatography with tandem mass spectrometry(GC-MS-MS). Methods: Samples were extracted with acetonitrile, cleaned by matrix dispersive solid-phase extraction using PSA and C18, detected by GC-MS-MS under multiple reaction monitoring mode, and quantified by an external standard method using matrix-match standard solution. Results: In the linear range of 0.004-0.400 mg/kg, the correlation coefficients for prochloraz and 2,4,6-trichlorophenol were 0.999 4 and 0.999 2, respectively. Their average recoveries at spiked levels of 0.01, 0.02 and 0.10 mg/kg were 80.1%–101.5% and 79.0%-97.4% with relative standard deviations of 2.8%–6.8% and 2.0%–6.0%, respectively, and their limits of quantification(LOQ)(RSN = 10) were 0.004 and 0.005 mg/kg, respectively. Conclusions: The proposed method is simple and sensitive with a wide range of measurement, and can be suitable for the analysis of prochloraz and 2,4,6-trichlorophenol residues in fruits.

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