皮革中五氯苯酚检测方法的改进研究  

An Improved Method for Determining Pentachlorophenol in Leather

作　　者：王荣娅 马贺伟[1] WANG Rong-ya;MA He-wei(College of Material and Textile Engineering,Jiaxing University,Jiaxing 314001,China)

机构地区：[1]嘉兴学院材料与纺织工程学院,浙江嘉兴314001

出　　处：《中国皮革》2022年第7期32-35,39,共5页China Leather

基　　金：国家级大学生创新训练计划项目(201910354010);嘉兴市皮革和纺织品染整清洁生产创新团队研究项目。

摘　　要：基于ISO 17070:2015的内容,对五氯苯酚的检测方法进行了改进。采用超声波辅助乙腈对样品中的PCP进行萃取,萃取液直接添加到衍生化体系中进行衍生化处理,然后采用气相色谱-质谱(GC-MS)对目标物进行测定。方法的回收率在83.6%~105.7%,精密度(RSD)在4.1%~8.8%,检测限为0.2 mg/kg。与ISO 17070:2015中的蒸汽蒸馏法相比,该方法提取效果好、操作简便,适合于批量皮革样品中五氯苯酚残留量的测定。The improved procedure was investigated for determining pentachlorophenol in leather based on ISO 17070:2015.Leather sample was eluted by ultrasonic assisted acetonitrile extraction,and the extraction solution was transferred directly into the derivation mixture for acetylation The yielded pentachlorophenol acetate was analyzed with Gas Chromatography-Mass Detector(GC-MS).The recovery rate is at the range of 83.6%~105.7%with reproducibility between 4.1%~8.8%.The detection limit is 0.2 mg/kg.Comparing with steam distillation operation described in ISO 17070:2015,the method presents high extraction extent and simple handle It is suitable for batch processing of leather to determine the residual pentachlorophenol.

关 键 词：五氯苯酚 检测 超声波萃取 衍生化 

分 类 号：TS57[轻工技术与工程—皮革化学与工程]