伊尔蒂什河水中多氯联苯和 OCP 的检测(GC-MS/MS)和生态风险评估

IF 1.6 Q2 MULTIDISCIPLINARY SCIENCES MethodsX Pub Date : 2024-09-02 DOI:10.1016/j.mex.2024.102944
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引用次数: 0

摘要

本研究优化了气相色谱-串联三重四极杆质谱(GC-MS/MS)方法,用于测定额尔齐斯河水中的 21 种持久性有机污染物(POPs),包括 14 种有机氯(OCPs)和 7 种多氯联苯(PCBs)。为了实现所有 21 种目标化合物的完美分离和精确定量,对色谱柱升温、定性和定量离子对的选择以及碰撞能量等因素进行了考虑。多氯联苯和 OCP 的检测限(LOD)在 0.21 至 1.18 纳克/升之间。应用该方法检测额尔齐斯河中的持久性有机污染物时发现,OCPs 的浓度从 ND 到 20.2 ng/L,PCBs 的浓度从 ND 到 0.411 ng/L。来源分析表明,额尔齐斯河中的持久性有机污染物主要来源于历史上的工业和农业活动,特别是蓄意使用杀虫剂。为确保生态安全和人类健康,有必要扩大目标分析物的范围并延长监测时间。本研究提供了:-7 种多氯联苯和 14 种 OCPs 的定性和定量分析方法-回收率介于 74.6% 和 109% 之间,RSD 小于 15%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Detection of PCBs and OCPs in the Irtysh River Water (GC-MS/MS) and ecological risk assessment

This study optimized a gas chromatography-tandem triple quadrupole mass spectrometry (GC-MS/MS) method for the determination of 21 persistent organic pollutants (POPs) in Irtysh River water, including 14 organochlorines (OCPs) and 7 polychlorinated biphenyls (PCBs). Factors such as column temperature ramping, selection of qualitative and quantitative ion pairs and collision energy were considered to achieve perfect separation and accurate quantification of all 21 target compounds. The limits of detection (LOD) for PCBs and OCPs ranged from 0.21 to 1.18 ng/L. Applying this method to detect POPs in the Irtysh River revealed concentrations of OCPs ranging from ND to 20.2 ng/L and PCBs from ND to 0.411 ng/L. Source analysis indicated that POPs in the Irtysh River mainly originate from historical industrial and agricultural activities, particularly the deliberate use of pesticides. To ensure ecological safety and human health, expanding the range of target analytes and monitoring periods is necessary. This study provides:

  • Qualitative and quantitative analysis methods for 7 PCBs and 14 OCPs.

  • Recoveries achieved ranged between 74.6 to 109 % with RSD less than 15 %.

  • Analysis of sources, transport pathways, accumulation status, and ecological risks of PCBs and OCPs in the Irtysh River.

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来源期刊
MethodsX
MethodsX Health Professions-Medical Laboratory Technology
CiteScore
3.60
自引率
5.30%
发文量
314
审稿时长
7 weeks
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