摘要
介绍了洗苯塔前、后煤气中苯含量的气相色谱分析方法。采用外标法（单点校正法），样品和标样分别在色谱条件相同、进样量相同的情况下进行色谱分析，根据样品和标样的苯峰峰高及标样中苯的含量计算出煤气中的苯含量。
The benzene in gas is determined by gas chromatographic in front of and behind benzene wash tower in An - ning branch of coking coal Co.. A chromatographic analysis of samples and standard samples was done by using external standard method （single -point calibration method） under the same chromatographic conditions and with the same injection volume. The benzene content in gas was calculated according to the benzene peak heigh of samples and the benzene content of standard samples.
关键词
气相色谱法
煤气
苯含量
峰高
gas chromatogramph gas benzene content peak height
