The gas flow path of SP - 3420 gas chromatograph was modified by adding a 10-way switch valve for analyzing micro-amount CO and CO2 in polymer grade propylene.
为了分析聚合级丙烯中的CO和CO2，对SP-3420型气相色谱仪的气路系统作了改装，增加了一个十通阀。
The extract was analyzed by gas chromatograph equipped with a flame photometric detector and a micro fluidic device with back-flush function.
取部分提取液浓缩、定容，用配备火焰光度检测器及微流控装置的气相色谱仪进行有机磷农药检测。
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