An empirical equation for the calculation of retention time with extrapolation of temperature in gas chromatography
Data(s) |
01/05/2001
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Resumo |
An empirical equation is proposed to accurately correlate isothermal data over a wide range of temperature With the equation ln k = A* + B*/T-lambda the retention times of different solutes tested on OV-101, SE-54 and PEG 20M capillary columns have been achieved even when lambda is assigned a constant value of 1.7 Comparison with ln k = A + B/T and in k = c + d/T+ h/T-2, shows that the proposed equation is of higher accuracy and is applicable to extrapolation calculation, especially from data at high temperature to those at low temperature. Parameters A* and B* as well as A and B are also discussed. The linear correlation of A* and B* is weaker than that of A and B. |
Identificador | |
Idioma(s) |
英语 |
Fonte |
陈吉平;梁鑫淼;张青;张乐沣.An empirical equation for the calculation of retention time with extrapolation of temperature in gas chromatography,Chromatographia,2001,53(9/10):548-552 |
Palavras-Chave | #gas chromatography #retention time #temperature equation #extrapolation of retention |
Tipo |
期刊论文 |