Simultaneous Determination of 11 Ether Compounds in Water by GC-MS with Purge and Trap
摘 要
采用已加入4 g质量比为3∶1的碳酸钠和氯化钠的混合物(盐析剂)的40 mL棕色硼硅玻璃瓶采集水样,使水样充满样品瓶。采用吹扫捕集-气相色谱-质谱法同时测定水样中11种醚类化合物的含量。在气相色谱分离中采用HP-VOC色谱柱(90 m×0.32 mm,1.8 μm),在质谱分析中采用选择离子监测模式。以氟苯为内标,环氧乙烷、环氧丙烷、四氢呋喃的线性范围均为5.0~100 μg·L-1,其他8种醚类化合物的线性范围均为0.50~50 μg·L-1,检出限为0.113~2.62 μg·L-1。以空白管网末梢水样品为基体进行加标回收试验,所得回收率为85.3%~115%,测定值的相对标准偏差(n=6)为3.0%~9.4%。
Abstract
Brown borosilicate glass bottle of 40 mL was used to collect water sample with 4 g of mixture of sodium carbonate and sodium chloride (mass ratio of 3∶1) as salting out agent. The bottle was filled with the water sample. GC-MS was applied to the simultaneous determination of 11 ether compounds in the water sample with purge and trap. The HP-VOC chromatographic column (90 m×0.32 mm, 1.8 μm) was used for GC separation and the selected ion monitoring mode was adopted in MS determination. Fluorobenzene was used as internal standard. Linearity ranges of ethylene oxide, propylene oxide and tetrahydrofuran were found in the same range of 5.0-100 μg·L-1 and linearity ranges of other 8 ether compounds were found in the same range of 0.50-50 μg·L-1, with detection limits in the range of 0.113-2.62 μg·L-1. On the base of blank sample of terminal tap water, test for recovery was made by standard addition method; values of recovery found were in the range of 85.3%-115%, with RSDs (n=6) of determined values in the range of 3.0%-9.4%.
中图分类号 O657.63 DOI 10.11973/lhjy-hx202007013
所属栏目 专题报道(环境分析)
基金项目
收稿日期 2019/8/30
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联系人作者王坤(531805498@qq.com)
备注王安祥,技师,主要从事理化检测工作
引用该论文: WANG Anxiang,XU Guangzhou,WANG Kun,WANG Chunlei. Simultaneous Determination of 11 Ether Compounds in Water by GC-MS with Purge and Trap[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2020, 56(7): 810~815
王安祥,徐广洲,王坤,王春蕾. 吹扫捕集-气相色谱-质谱法同时测定水中11种醚类化合物[J]. 理化检验-化学分册, 2020, 56(7): 810~815
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参考文献
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【3】周志荣,张淼,林少彬.吹扫捕集气相色谱质谱法测定水中甲基叔丁基醚[J].环境卫生学杂志, 2013,3(3):230-232.
【4】CARDINALI F L, ASHLEY D L, MORROW J C, et al. Measurement of trihalomethanes and methyl tertiary-butyl ether in tap water using solid-phase microextraction GC-MS[J]. Journal of Chromatographic Science, 2004,42(4):200-206.
【5】姚文生,谷素艳.TAME合成原料及产品的气相色谱分析[J].光谱实验室, 2005,22(2):422-424.
【6】王春梅,姜晓晖,侯学伟.二异丙醚的气相色谱分析[J].合成技术及应用, 2002,17(1):57-58.
【7】邱丰,费旭东,魏宇锋,等.气相色谱-质谱法测定汽油中8种醚类和苯胺类添加剂[J].理化检验-化学分册, 2015,51(6):790-794.
【8】HEINRICH-RAMM R, JAKUBOWSKI M, HEINZOW B, et al. Biological monitoring for exposure to volatile organic compounds (VOCs) (IUPAC Recommendations 2000)[J]. Pure and Applied Chemistry, 2000,72(3):385-436.
【9】饶钦全,徐方曦,余彬彬,等.顶空气相色谱法测定水中环氧乙烷[J].轻工科技, 2015,31(7):128-129.
【10】胡恩宇,母应锋,杨丽莉.顶空气相色谱法测定水中的1,2-环氧丙烷[J].分析测试技术与仪器, 2008,14(3):172-175.
【11】周民锋,朱月芳,张晓华.顶空气相色谱法测定水中四氢呋喃[J].污染防治技术, 2014,27(1):31-33.
【12】赵琼,王丽,韩冰,等.作业场所空气中乙醚的溶剂解吸气相色谱法研究[J].中国卫生检验杂志, 2012,22(3):466-467.
【13】赵慧琴,刘斌,张燕.吹扫捕集/气相色谱-质谱法测定水中苯甲醚和8种苯系物的多组分分析方法验证[J].医学动物防制, 2015,31(7):818-820.
【14】刘田元,刘雄民,马丽,等.苯甲醚和苯乙醚氧化特性及其产物[J].应用化工, 2017,46(8):1461-1465.
【15】刘仲华,刘义国,宋大军,等.毛细管气相色谱法分析二苯醚纯度[J].山东化工, 1998,27(5):30-31.
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