加速溶剂萃取-在线净化-液相色谱串联质谱法检测污泥堆肥样品中三氯生和三氯卡班  

In-cell Clean-up-Pressurized Liquid Extraction-Liquid Chromatography-Tandem Mass Spectrometry for the Analysis of TCS and TCC in Sewage Sludge

作　　者：刘媛媛 张倩[1] 梁涛[1] 郑国砥[1] 王凌青[1] LIU Yuan-yuan;ZHANG Qian;LIANG Tao;ZHENG Guo-di;WANG Ling-qing(Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,China)

机构地区：[1]中国科学院,地理科学与资源研究所,北京100101

出　　处：《环境监控与预警》2022年第5期82-87,共6页Environmental Monitoring and Forewarning

基　　金：国家自然科学基金—青年科学基金资助项目(42203011)。

摘　　要：污泥堆肥样品基质复杂,其中三氯生(TCS)和三氯卡班(TCC)的提取和净化过程操作烦琐、回收率低。通过对净化条件进行优化,建立了加速溶剂萃取-在线净化-液相色谱串联质谱法检测污泥堆肥样品中TCS和TCC的分析方法,并对上海某污水厂实际污泥堆肥样品中的TCS和TCC进行定量分析。结果表明,TCS和TCC的检出限分别为0.003和0.0002μg/g,加标回收率为90.3%~99.8%,相对标准偏差(RSD)为1.2%~8.5%(n=6)。该方法样品前处理时间短、回收率高、试剂使用量少,能够满足实际污泥堆肥样品中TCS和TCC的检测要求。The extraction and clean-up of triclosan(TCS)and triclocarban(TCC)in sewage sludge is complicated and is of low recoveries.By optimizing the extraction conditions,an automated and sensitive method based on in-cell clean-up pressurized liquid extraction(PLE)coupled with liquid chromatography-tandem mass spectrometry was developed for the determination of TCS and TCC in sewage sludge.The quantitative analysis on TCS and TCC in real sewage sludge samples from a sewage treatment plant in Shanghai was accomplished.The results showed that the limits of detection(LOD)were 0.003 and 0.0002μg/g for TCS and TCC,respectively,and the recoveries were 90.3%~99.8%with relative standard deviations(RSD)ranged from 1.2%to 8.5%(n=6).The method is of less time-consuming,higher recovery and less solvent usage.It meets the needs of determination of TCS and TCC in sewage sludge.

关 键 词：污泥堆肥 加速溶剂萃取 在线净化 样品前处理 三氯生 三氯卡班 

分 类 号：X832[环境科学与工程—环境工程]