吹扫捕集-气相色谱法测定电泳废水中的苯系物

Purge and trap-gas chromatography electrophoresis wastewater BTEX

利用吹扫捕集-气相色谱法测定电泳废水中的苯系物,对苯、甲苯、二甲苯、异丙苯、苯乙烯等项目进行了测试。实验结果表明,在实验条件下,待测物质在气相色谱中可以较好的得到分离,峰面积与实验使用溶液浓度具有良好的线性关系;测试的检出限、加标回收率等指标满足分析测试要求。吹扫捕集-气相色谱法测定电泳废水中的苯系物可较好的应用于日常监测。

Determination Electrophoresis Wastewater BTEX gas chromatography, benzene, toluene, xylene, cumene, styrene and other items were tested by a purge and trap. Experimental results show that under the experi- mental conditions, the test substance in the gas chromatograph can get a better separation between peak area and concentration experiments using a solution having a good linear relationship; detection limit of the test, recoveries and other indicators to meet the analysis Testing requirements. Purge and Trap-Determination Electrophoresis Wastewater BTEX can be better applied to daily monitoring by gas chromatography.