载气对毛细管GLC中相对保留和分离的影响

V. G. Berezkin
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引用次数: 1

摘要

理论和实验表明,在常规毛细管气相色谱条件下(即载气压力小于5 atm),载气性质对相对保留率Rel(Pav)有影响,相对保留率与平均柱压Pav呈线性关系。提出了在Pav=0时,相对保留值Rel(Pav)=Rel(0)作为溶质色谱常数的不变极限值。将一种载气交换为另一种载气对保留量有显著影响,直至洗脱顺序的变化。载气性质和载气压力是影响分离的积极因素。©2000 John Wiley &[J] .中国科技大学学报(自然科学版),2000
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Carrier gas effects on relative retention and resolution in capillary GLC†

It was theoretically and experimentally shown that the nature of carrier gas has an influence on relative retention Rel(Pav) and that the relative retention is linearly dependent on average column pressure Pav under the conditions of conventional capillary gas chromatography (i.e., at carrier gas pressure less than 5 atm). An invariant limiting value of relative retention lim Rel(Pav)=Rel(0) at Pav=0 was suggested as a chromatographic constant of the solute. Exchanging one carrier gas for another has a significant influence on the retention up to variation in elution order. Carrier gas nature and the pressure of the carrier gas are the factors that actively influence the separation. © 2000 John Wiley & Sons, Inc. J Micro Sep 12: 515–519, 2000

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