GAS-CHROMATOGRAPHIC AND MASS-SPECTROMETRIC DETERMINATION OF NITROAROMATICS IN WATER
GAS-CHROMATOGRAPHIC AND MASS-SPECTROMETRIC DETERMINATION OF NITROAROMATICS IN WATER
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DOI：
10.1016/s0021-9673(01)93159-0
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发表时间：
1990-09-28
期刊：
影响因子：
--
通讯作者：
SPIEKERMANN, M
中科院分区：
文献类型：
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作者：
FELTES, J;LEVSEN, K;SPIEKERMANN, M
比较了几种从水中提取硝基芳香族化合物的方法。用二氯甲烷间歇或连续提取水，用Amberlite XAD-2、-4和-8树脂(1：1：1)吸附，用二氯甲烷洗脱，回收率较高。用氰基、苯基或十八烷基键合相进行固相萃取得到的回收率因所研究化合物的不同而不同，而且往往很低。使用电子捕获或化学发光检测器(热能分析仪)的气相色谱和使用电子碰撞和正负离子化学电离的质谱仪测定了硝基芳香族化合物。
Several methods for the extraction of nitroaromatic compounds from water were compared. High recoveries were achieved with discontinuous or continuous extraction of water with dichloromethane and by adsorption on Amberlite XAD-2, -4 and -8 resins (1:1:1) and elution with dichloromethane. The recoveries obtained with solid-phase extraction using cyano-, phenyl- or octadecyl-bonded phases varied, depending on the compounds studied, and were often low. Nitroaromatic compounds were determined by gas chromatography using an electron-capture or a chemiluminescence detector (thermal energy analyzer) and by mass spectrometry using electron impact and positive- and negative-ion chemical ionization.