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顶空便携式气相色谱—质谱仪现场测定地表水中苯系物
引用本文:邵昶铭.顶空便携式气相色谱—质谱仪现场测定地表水中苯系物[J].干旱环境监测,2010,24(1):5-8.
作者姓名:邵昶铭
作者单位:甘肃省环境监测中心站,甘肃,兰州,730030
摘    要:对顶空便携式气相色谱—质谱仪分析水中的苯、甲苯、乙苯、邻-二甲苯、间-二甲苯、对-二甲苯、异丙苯的方法进行了研究,并讨论了平衡时间、平衡温度、水中含盐量等因素对测定的影响。结果表明,方法的回收率为94.15%~98.67%,相对标准偏差为2.32%~4.88%,最低检出限为0.031~0.094μg/L。该方法快速、准确、重复性好。

关 键 词:顶空气相色谱-质谱法  苯系物  

Determination of BTEXs in Water by Head Space Portable Gas Chromatography-Mass Spectrometer
SHAO Chang-ming.Determination of BTEXs in Water by Head Space Portable Gas Chromatography-Mass Spectrometer[J].Arid Environmental Monitoring,2010,24(1):5-8.
Authors:SHAO Chang-ming
Institution:Gansu Environmental Monitoring Center;Lanzhou Gansu 730030;China
Abstract:A method for determination of BTKXs in water has been investigated by head space portable gas chromatography - mass spectrometer, and the effects of equilibration time, equilibration temperature and water salinity in the determination were discussed. The results showed that the recoveries ranged from 94.15 % to 98.67% with the relative standard deviations( RSDs, 2.32% - 4.88 % ) and the detection limits for BTEXs were in a range of 0.031 - 0. 094/ag/L. Tiffs method was rapid, accurate, good reproducibility.
Keywords:head space portable gas chromatography-mass spectrometer  BTEXs  water  
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