吹扫捕集气相色谱质谱联机法测定废水中硝基甲苯  

Determination of Nitrotoluene in Waste Water by Purge-and-Trap Gas Chromatography-Mass Spectrometry

作　　者：刘广东[1] Liu Guangdong(College of Chemical Engineering, China University of Petroleum （East China）, Qingdao 266580, Chin)

机构地区：[1]中国石油大学(华东)化学工程学院,山东青岛266580

出　　处：《广东化工》2018年第9期218-219,共2页Guangdong Chemical Industry

摘　　要：本文用吹扫捕集前处理,气相色谱-质谱联机法对废水中硝基甲苯进行了测定,试验了吹扫时间、脱附温度对测定的影响。本法在测定范围内线性关系良好,检出限为0.07~0.08μg/L,加标回收率为95.0%~105%。该方法操作简单、准确度高,可用于废水中硝基甲苯类物质的测定。This study conducted purge-and-trap technique and pretreatment, and determined the nitrotoluene in waste water by gas chromatography-mass spectrometry（GC-MS） method. The effects of purge time and desorption temperature on the determination were tested. This method has good linearity in the measurement range, with a detection limit of 0.07-0.08 μg/L, and a recovery rate of 95.0 %-105 %. This method is simple and accurate, and can be used for the determination of nitrotoluene in wastewater.

关 键 词：硝基甲苯废水 吹扫捕集 色谱质谱联用法 测定 

分 类 号：TQ[化学工程]