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超高效液相色谱-串联质谱法测定工作场所空气中14种环境激素的含量
          
Determination of 14 Environmental Hormones in Workplace Air by Ultra- High Performance Liquid Chromatography Tandem Mass Spectrometry

摘    要
用装好玻璃纤维滤膜的采样夹采集某工作场所空气样品,将采样后的玻璃纤维滤膜用5 mL体积比为8∶2的甲醇-水混合液超声洗脱10 min。以Waters Symmetry C18色谱柱为固定相,以不同体积比的乙腈和水的混合液为流动相进行梯度洗脱,采用超高效液相色谱-串联质谱法测定所得溶液中14种环境激素的含量。结果表明:14种环境激素的质量浓度在一定范围内与定量离子的峰面积呈线性关系,雌酮、己烯雌酚、三氯生、三氯卡班、四氯双酚A的检出限(3S/N)为0.1 μg·L-1,17α-雌二醇、17β-雌二醇、17α-炔雌醇、雌三醇、双酚A、四溴双酚A、壬基酚、4-正辛基酚、双酚F的检出限(3S/N)为0.5 μg·L-1。按照标准加入法进行回收试验,回收率为67.6%~119%,重复性和重现性试验所得测定值的相对标准偏差(n=6)分别为1.2%~11%和1.4%~12%。
标    签 环境激素   工作场所空气   超高效液相色谱-串联质谱法   environmental hormone   workplace air   ultra-high performance liquid chromatography tandem mass spectrometry  
 
Abstract
A sampling clip fitted with glass fiber filter membrane was used to collect air sample from a workplace, and the sampled glass fiber filter membrane was eluted ultrasonically with 5 mL of methanol-water mixture at a volume ratio of 8∶2 for 10 min. 14 environmental hormones in the obtained solution were determined by ultra-high performance liquid chromatography tandem mass spectrometry, using Waters Symmetry C18 column as the stationary phase and the mixture of acetonitrile and water at different volume ratios as the mobile phase for gradient elution. As shown by the results, linear relationships between values of peak area of quantitative ions and mass concentrations of 14 environmental hormones were found in definite ranges, with detection limits (3S/N) of 0.1 μg·L-1 for estrone, diethylstilbestrol, triclosan, triclocarban and tetrachlorobisphenol A, and 0.5 μg·L-1 for 17α-estradiol, 17β-estradiol, 17α-ethinylestradiol, estriol, bisphenol A, tetrabromobisphenol A, nonylphenol, 4-n-octylphenol and bisphenol F. Test for recovery was made by standard addition method, giving results in the range of 67.6%-119%, with RSDs (n=6) of the determined values obtained by tests for repeatability and reproducibility in the ranges of 1.2%-11% and 1.4%-12%, respectively.

中图分类号 O657.63   DOI 10.11973/lhjy-hx202212014

 
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收稿日期 2021/3/2

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备注凌云杉,护师,主要从事职业病危害因素检测工作

引用该论文: LING Yunshan,LIU Zhong. Determination of 14 Environmental Hormones in Workplace Air by Ultra- High Performance Liquid Chromatography Tandem Mass Spectrometry[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2022, 58(12): 1449~1456
凌云杉,刘仲. 超高效液相色谱-串联质谱法测定工作场所空气中14种环境激素的含量[J]. 理化检验-化学分册, 2022, 58(12): 1449~1456


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