气相色谱仪FPD检测器点火故障维修一例

An example of maintenance for ignition failure of GC FPD detector

气相色谱仪FPD检测器在农产品农药残留检测中主要用于检测有机磷类农药,在其日常使用过程中会出现很多故障。本文从仪器参数设置、色谱柱安装、气路系统、点火器组件等方面逐步排查引起一次开机过程中FPD检测器始终点不着火焰问题的原因,并详细描述了动手拆卸清洗FPD检测器喷嘴和更换点火器组件的流程。

FPD detector of Gas chromatograph is mainly used to detect organophosphorus pesticides in pesticide residue detection of agricultural products,and there arre many failures in its daily use.In this paper,the causes for the failure of FPD detector to ignite the flame during a start-up process are investigated step by step from the aspects of instrument parameter setting,column installation,gas system,igniter components,etc.and the process of manually disassembling and cleaning the FPD detector nozzle and replacing the igniter components is described in detail.