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- 2018
气相色谱法同时测定污染源废气中11种苯系物
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Abstract:
建立了毛细管柱气相色谱法同时测定废气中11种苯系物的方法，废气经活性碳采集、二硫化碳解析后，用DB-WAX毛细管柱分离，氢火焰离子化检测器检测.研究结果表明，该方法测定的11种苯系物分离效果良好，每种苯系物的标准曲线的相关系数均大于0.999，当采样体积为10 L，进样量为1.00 μL时，11种苯系物的方法检出限均小于1.5×10-3 mg/m3，加标回收率为98.4%~102.8%.
A capillary column gas chromatographic method for the simultaneous determination of 11 benzenes in exhaust gas was established.Exhaust gas was collected by activated carbon and resolved by carbon disulfide.Then it was separated through the DB-WAX capillary column and detected by a hydrogen flame ionization detector.The results showed that this method gave a good separation effect of the 11 kinds of benzene compounds, and the correlation coefficient of the standard curve of each benzene was greater than 0.999.With a sampling volume of 10 L and an injection volume of 1.00 μL, this method gave a detection limit of < 1.50×10-3 mg/m3 and a recovery rate of 98.4%-102.8% for all the 11 kinds of benzene
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