摘要
建立了吹扫捕集气相色谱质谱联法同时测定水中卤代烃、氯代苯和苯系物的方法,对吹扫条件和解析条件进行了优化。结果表明,经分析条件优化后,目标化合物的曲线相关系数在0.995～0.999 5之间,检出限在0.03～0.49μg/L之间,相对标准偏差在1.28%～7.29%之间,具有很好的线性和精密度。方法用于地表水、生活污水和化工废水中23种有机物的测定,并进行了加标回收实验,地表水回收率在97.2%～109.9%之间,生活污水回收率在93.2%～113.1%之间,废水回收率在93.1%～106.4%之间,表明方法具有很好的准确度,可用于地表水、生活污水和化工废水中有机物的测定。
A method was established to determine volatile halohydrocarbons, chlorobenzenes and benzene homologs in water by purge and trap gas chromatography/mass spectrometry. The purge and trap conditions were optimized. The results showed that the correlation coefficient of calibration curve was between 0.995~0.999 5, the detection limit was0.03~0.49 μg/L and RSD of the method was 1.28%~7.29%.The method was applied to analyze surface water and domestic sewage and industrial wastewater. Average recovery of surface water samples was 97.2%~109.9%, average recovery of domestic sewage samples was 93.2%~113.1% and average recovery of industrial wastewater samples was93.1%~106.4% The method has good accuracy, so it can be used for synchronous determination of volatile halohydrocarbons, chlorobenzenes and benzene homologs in surface water,sewage and wastewater.
作者
章勤
黄酉腊
舒天阁
王曙兴
包杰
ZHANG Qin;HUANG You-la;SHU Tian-ge;WANG Shu-xing;BAO Jie(Zhenhai Environmental Protection Monitoring Centre,Zhejiang Ningbo 315200,China)
出处
《当代化工》
CAS
2019年第2期403-409,共7页
Contemporary Chemical Industry
关键词
吹扫捕集
气相色谱/质谱
挥发性卤代烃
氯代苯
苯系物
Purge and trap
Gas chromatography/mass spectrometry
Volatile halohydrocarbons
Chlorobenzene
Benzene homologs
