引用本文:
许国旺, 张玉奎, 卢佩章. 气相色谱法的限制因素[J]. 应用化学,
1993, 10(5): 66-71.
Citation: Xu Guowang, Zhang Yukui, Lu Peizhang. RESTRICTING FACTORS WHICH MAKE A COMPONENT ANALYZABLE BY GAS CHROMATOGRAPHY[J]. Chinese Journal of Applied Chemistry, 1993, 10(5): 66-71.
Citation: Xu Guowang, Zhang Yukui, Lu Peizhang. RESTRICTING FACTORS WHICH MAKE A COMPONENT ANALYZABLE BY GAS CHROMATOGRAPHY[J]. Chinese Journal of Applied Chemistry, 1993, 10(5): 66-71.
气相色谱法的限制因素
English
RESTRICTING FACTORS WHICH MAKE A COMPONENT ANALYZABLE BY GAS CHROMATOGRAPHY
Abstract:
On the basis of vapour pressure changes at the inlet and outlet of a gas chromatographic column and the vapour pressure values of six types of compounds with different carbon atoms at diffferent temperatures, the basic conditions for using gas chromatography to analyze a component have been obtained. It appears that the vapour pressure of a component must be higher than 15~746Pa,and the capacity factor in the range of 0.2~20. A large retention value may prevent a component from being analyzable by gas chromatography. When the capacity factor (k') of a component lies in the range of 0.2 to 20,its vapour pressure will meet the requirements of FID detection.
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Key words:
- gas chromatography
- / detection limit
- / elution limit
- / restricting factor
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