土壤中有机污染物的气相色谱-四极杆飞行时间质谱非靶标筛查  

Non-target screening of organic pollutants in soil based on GC-QTOF/MS

作　　者：朱超飞[1] 武姿辰 杨文龙[1] 董亮[1] 王雯雯[3] 吕美玲[3] 黄业茹[1] ZHU Chaofei;WU Zichen;YANG Wenlong;DONG Liang;WANG Wenwen;Lü Meiling;HUANG Yeru(State Environmental Protection Key Laboratory of Dioxin Pollution Control,National Research Center for Environmental Analysis and Measurement,Environmental Development Center of the Ministry of Ecology and Environment,Beijing,100029,China;College of Resource Environment and Tourism,Capital Normal University,Beijing,100048,China;Agilent Technologies(China)Ltd.,Inc.,Beijing,100102,China)

机构地区：[1]国家环境保护二噁英污染控制重点实验室,国家环境分析测试中心,生态环境部环境发展中心,北京100029 [2]资源环境与旅游学院,首都师范大学,北京100048 [3]安捷伦科技(中国)有限公司,北京100102

出　　处：《环境化学》2021年第2期662-664,共3页Environmental Chemistry

摘　　要：本文基于气相色谱-四极杆飞行时间质谱(GC-QTOF/MS)对宜昌某化学工业园区内的土壤进行潜在有机污染物的非靶标筛查.根据已有高分辨数据库和保留时间信息,采用精确质量数提取筛查流程识别出样品中96种污染物,主要以多环芳烃及其代谢产物、氯苯类和农药为主.进一步通过未知物分析软件解卷积功能和质谱NIST数据库的匹配,发现了如二氯苯胺、9-芴酮、3-甲基二苯并噻吩等更多的污染物.该方法能够快速筛查和识别出样品中潜在有机污染物,为当地污染物的风险管控提供借鉴意义.Non-target screening of organic contaminants in soil samples,collected from a typical chemical industrial park in Yichang City,was conducted using gas chromatography coupled with quadrupole time-of-flight mass spectrometry.96 compounds were identified based on the high-resolution accurate mass database,dominated by polycyclic aromatic hydrocarbons and their derivatives,chlorobenzenes and pesticides.More contaminants,such as dichloroaniline,9-fluorenone and 3-methyldibenzothiophene were found using Unknowns Analysis software combined with NIST mass spectral database.The non-target screening workflow is capable to find and confirm the potential contaminants,which could provide technical support for risk control of pollutants.

关 键 词：土壤 有机污染物 气相色谱-四极杆飞行时间质谱 非靶标筛查 

分 类 号：X833[环境科学与工程—环境工程] O657.63[理学—分析化学]