吹扫捕集－气相色谱质谱法测定水中丙烯醛和丙烯腈的试验研究

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关键词：水；丙烯醛；丙烯腈；吹扫捕集；气相色谱质谱

中图分类号：X830；0657.63 文献标识码：A 文章编号：1008-9500（2025）08-0014-04

DOI： 10.3969/j.issn.1008-9500.2025.08.004

Experimental Study on the Determination of Acrolein and Acrylonitrile in Water by Purge and Trap-Gas Chromatography-Mass Spectrometry

MA Danqing （Shanghai Songjiang Environmental Monitoring Station，Shanghai2O1613，China）

Abstract：The method foranalyzingacroleinandacrylonitrilein surface waterand industrial wastewater is established by optimizing the purge and trap conditions and using purge and trap-gas chromatography-mass spectrometry.The experimentalresults indicate that there isagoodlinearrelationshipbetweenacroleinandacrylonitrile.Thedetectionlimits for acroleinand acrylonitrile are and 0.4μg/L ，respectively，with relative standard deviations of 0.67%～1.95% （20 and 0.75%～ 1.96% ，respectively，the recovery rates of blank samples are 95.8%～ 103.0% and 98.2%～ 102.0% ， respectively， the recovery rates of surface water samples are 102%～104% and 104%～108% ，respectively，the recovery rates of industrial wastewater samples are 98.4%～ 104.0% and 103%～109% ，respectively.This method has significant advantages，suchas shorttimeconsumption，good separation effect，lowdetectionlimit，and good repeatability.

Keywords：water;acrolein;acrylonitrile; purgeand trap;gas chromatography-mass spectrometry

丙烯醛和丙烯腈等有机物在工业生产和废水排放中广泛存在，对生态环境和人体健康构成一定的危害[-3]。（剩余4026字）