直流等离子体离子化检测器的研究—管道煤气中可燃气体的测定

Studies on Direct Current Plasma Ionization Detector -Measurements of Flammable Gas in Coal Gas

本文提出一种改进的直流等离子体离子化检测器（ＤＣＰＩＤ），用于管道煤气中可燃气体Ｈ２、ＣＨ４和ＣＯ的测定。采用氦气作工作气体，对该检测器的工作参数和响应特性进行了优化。木法结果与微波诱导等离子体离子化检测器（以ＩＰＩＤ）的结果作了比较，结果满意。

A new direct current plasma ionization detector (DCPID) has been developed in this paper,the experimental parameters and analytical performance of the DCPID were examined. When helium was used as carrier and surpport gas, H2. CH4 and CO in coal Sas have been dtermined.The result is satisfactorily comparied with that of microwave induced plasma ionization deteror (MIPID).