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气相色谱的优良分离性能与红外光谱独特的结构检测能力相结合,用来对混合组份进行检测,已成为有实用价值的分析手段。最初仅采用色谱分馏收集技术,把色谱馏出物低温冷凝于红外晶片或是用冷阱冷凝后再用微量转移技术移至微量液体池或微量气体池。尔后再用红外光谱仪测试。这种分离联机检测技术因其操作复杂费时,灵敏度不高,因而未能得到进一步发展。为了能直接联机检测,人们又把经过色谱检测器出
The excellent separation performance of gas chromatography combined with the unique structural detection ability of infrared spectroscopy, which is used for the detection of mixed components, has become a valuable analytical tool. Initially only chromatographic fractionation techniques were used to condense chromatographic distillates from cryogenic condensates into infrared wafers or to condense them in cold traps and then transferred to a trace or trace gas cell using microtransfer techniques. Then use the infrared spectrometer test. This separation of online detection technology because of its complexity and time-consuming operation, the sensitivity is not high, it failed to get further development. In order to be able to test directly online, people turn out the chromatogram detector