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QGS-08型红外线分析器具有灵敏度高和选择性较好等优点,但在间断进样分析的使用中存在一些问题。采用改进后的进样系统,分析周期大大缩短,减少了操作步骤,峰形有了改善,仪器精度得到提高,最小检测浓度可达0.2～0.4ppm,可满足对大气样品间断分析的要求。 1.进样系统的改进 (1)原分析器的使用方法:原分析器的使用方法是将各采样点送来的气体样品接入仪器进口处,再启动仪器内装电磁泵将
The QGS-08 infrared analyzer has the advantages of high sensitivity and selectivity, but there are some problems in using the intermittent injection analysis. With the improved injection system, the analysis cycle is greatly shortened, the operation steps are reduced, the peak shape is improved and the precision of the instrument is improved. The minimum detection concentration can reach 0.2-0.4ppm, which can meet the requirements of intermittent analysis of atmospheric samples. 1 injection system improvements (1) the use of the original analyzer: The original analyzer is used to sample gas sent from each sample point access to the instrument inlet, and then start the instrument built-in electromagnetic pump will