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将微波等离子体炬原子发射光谱检测器 ( MPT- AED)用作气相色谱检测器 ,采用氩气作为工作气、载气和尾吹气 ,优化了气体流量参数 ;为了防止被测物质在管壁上的沉积 ,考察了氧气作为气相色谱 -微波等离子体炬 -原子发射光谱检测器 ( GC- MPT- AED)清洗气时对 Cl,Br,I 3种元素发射信号的影响。为了考察检测器的分析性能 ,研究了 GC- MPT- AED对有机化合物中 Cl,Br,I3种元素的检出限、线性范围、精密度及其响应特性 ,并将其结果与气相色谱 -电感耦合等离子体 -原子发射光谱检测器 ( GC- ICP- AED)的结果作了比较 ,结果表明该仪器对 Cl,Br的检测能力优于 GC- ICP- AED的结果 ,线性范围与 GC- ICP- AED结果相一致
The microwave plasma torch atomic emission spectrometry detector (MPT-AED) was used as a gas chromatographic detector, and argon gas was used as working gas, carrier gas and makeup gas to optimize the gas flow parameters. In order to prevent the substance under test The effect of oxygen on the emission of Cl, Br, and I elements when the gas was purged with gas by gas chromatography-microwave plasma torch-atomic emission spectrometry (GC-MPT-AED) was investigated. In order to investigate the analytical performance of the detector, the detection limits, linear ranges, precision and response characteristics of Cl, Br, I in organic compounds by GC-MPT-AED were studied. The results were compared with gas chromatography-inductive The results of the coupled plasma-atomic emission spectrometer (GC-ICP-AED) were compared. The results show that the instrument is superior to the GC-ICP-AED in the detection of Cl and Br, The AED results are consistent