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前文述及使用糠醛一硝基苯混合固定液分离空气-乙炔-氯乙烯,混合柱分离效率高,柱子短,分析时间节省,但糠醛易于挥发。为了进一步寻找效率高、寿命长的色谱柱,我们广泛地进行了选择。根据对三组份分析的经验,我们认为,作为色谱柱的固定液,除一般地对固定液的要求外,还应符合如下几个原则:(1) 乙炔的保留体积大,这样可以在适当的缩短柱长后仍能保证乙炔与空气的分离;(2) 氯乙烯与乙炔的
The previous article described the use of furfural mixed with nitrobenzene fixed air separation air - acetylene - vinyl chloride, hybrid column separation efficiency, short columns, the analysis of time savings, but easy to volatile furfural. In order to further search for efficient, long-lived columns, we have extensively chosen. Based on the three-component analysis experience, we believe that, as a fixed liquid column, in addition to the general requirements of the fixed liquid, but also comply with the following principles: (1) Acetylene retention volume, which can be appropriate After the shortening of the column length can still ensure the separation of acetylene and air; (2) vinyl chloride and acetylene