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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.
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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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Keywords:
- gas chromatography,
- detection limit,
- elution limit,
- restricting factor
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