Optimum performance of capillary GC columns as a function of column diameter and film thickness under various operating conditions: Part II: Computer program extensions for n-alkane solutes and polydimethylsiloxane phases

P.A. Leclercq

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Abstract

A BASIC computer program for calcn. of max. plate no. and min. anal. time conditions for columns operated at various outlet pressures was presented by the author in 1985. This sequel reports extensions to the program for n-alkanes sepd. on polydimethylsiloxane stationary phases, specifically for n-C2 through n-C20 on phases equiv. to SE-30 or OV-1. For these solute-phase systems the amt. of thermodn. data available is sufficient to enable calcn. of several parameters. Firstly, the sepn. temp. is now automatically calcd. for a requested capacity ratio, or vice versa. Secondly, the computation of solute diffusivities in the stationary phase has been improved to approach exptl. data more realistically, particularly for higher n-alkanes at higher temps. The largest extension to the program is the inclusion of a facility enabling calcn. of column sample capacity, min. detectable amts. with FID and TCD detectors, and column working ranges. These parameters are calcd. for n-alkanes, but are independent of the nature of the stationary phase. The updated program has been and is being used on a routine basis in the author's lab.; it has been reliable and has on numerous instances been proven in the field
Original languageEnglish
Pages (from-to)531-534
JournalJournal of High Resolution Chromatography
Volume15
Issue number8
DOIs
Publication statusPublished - 1992

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