【摘要】 利用气相色谱方法,采用火焰光度检测器(FPD),对磷化氢气体进行了较为系统的气相分析,建立了快速、灵敏、可靠的磷化氢工业在线分析。调节色谱操作参数,验证实验数据的可靠性;用焰光度检测器检测,测量的灵敏度为2.48×1014μV.s/g,最小检测限为1.6129×10-13g/s;以柱效为评价指标,优化检测磷化氢的色谱操作条件,得出最佳柱箱温度和载气流速分别在140℃左右、80 mL/min附近。更多还原

【Abstract】 In this paper,a method is developed to analyze phosphine(PH3) by gaschromatogram(GC) capillary column and Flame Photometric Detector(FPD).The requirements for GC system are discussed.The operational parameter conditions for FPD detector have been changed.Experiment results show that FPD has advantage of high sensitivity,It is desirable for industrial on-line analysis,which has the requirements of rapid response,high sensitivity and accurancy.The column efficiency is taken as index,the optimal column temperature and carrier gas flow rate are about 140℃ and 80 mL·min-1 respectively.更多还原