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超高效液相色谱串联质谱同时快速检测环境水体中31种内分泌干扰物
  • ISSN号:0254-6108
  • 期刊名称:《环境化学》
  • 时间:0
  • 分类:X503[环境科学与工程—环境工程]
  • 作者机构:同济大学环境科学与工程学院,上海200092
  • 相关基金:国家自然科学基金(21277100,21577103);水体污染控制与治理科技重大专项(2014ZX07402001)资助~~
中文摘要:

本文建立了固相萃取结合超高效液相色谱-串联质谱(SPE-UPLC-MS/MS)同时测定环境水体中31种内分泌干扰物(EDCs)的分析方法.水样通过MCX固相萃取柱一步富集.采用BEH C18色谱柱(150 mm×2.1 mm i.d.,1.7μm)对化合物进行分离,0.025%氨水-甲醇梯度洗脱,电喷雾正负离子(ESI-、ESI+)两种电离模式切换、多反应监测(MRM)模式进行同时检测,内标法定量.31种EDCs在一定浓度范围内均呈良好的线性关系(R2≥0.99),方法检出限为0.01—3 ng·L-1.对Milli-Q纯水、自来水和地表水进行加标回收,日内、日间相对标准偏差值均小于25%.自来水和地表水样品的平均加标回收率分别为61.2%—150%、54.4%—141%和51.6%—127%、52.2%—143%.此方法一步固相萃取,31种物质同时检测,方便快捷,灵敏度高.该方法成功应用于饮用水和地表水(黄浦江和太湖)中31种EDCs的分析.

英文摘要:

A method was developed for the simultaneous determination of 31 endocrine disrupting chemicals(EDCs) in environmental water by solid phase extraction combined with ultra performance liquid chromatography-tandem mass spectrometry(UPLC-MS/MS). Water samples were enriched by MCX solid-phase extraction columns in one step. The separation was performed on a BEH C18column(150 mm×2.1 mm i. d.,1.7 μm) in gradient elution with methanol-0.025% ammonia aqueous solution as the mobile phase. The samples were detected by multiple reaction monitoring(MRM)mode with positive-negative electrospray ionization. Thirty one EDCs were quantified by internal standard method and the calibration curves showed good linearity in a wide range with correlation coefficients(R2) not less than 0.99. The detection limit of EDCs ranged from 0.01—3 ng·L-1. The average recovery of the 31 EDCs spiked in tap water and surface water samples ranged from 61.2%—150%,54.4%—141% and 51. 6%—127%,52. 2%—143% respectively. All the relative standard deviations of EDCs were less than 25%. The developed method is sensitive,convenient,rapid and reliable for the simultaneous determination of 31 EDCs in drinking water and surface water.

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期刊信息
  • 《环境化学》
  • 北大核心期刊(2011版)
  • 主管单位:中国科学院
  • 主办单位:中国科学院生态环境研究中心
  • 主编:郭良宏
  • 地址:北京2871信箱
  • 邮编:100085
  • 邮箱:hjhx@rcees.ac.cn
  • 电话:010-62923569
  • 国际标准刊号:ISSN:0254-6108
  • 国内统一刊号:ISSN:11-1844/X
  • 邮发代号:82-394
  • 获奖情况:
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,美国化学文摘(网络版),美国剑桥科学文摘,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊(2004版),中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版),英国英国皇家化学学会文摘,中国北大核心期刊(2000版)
  • 被引量:27127