title: Correlation of characteristic thermal constant and elution temperature in GC.
abstract: In a temperature-programmed analysis, the solutes that elute at higher temperatures have generally larger characterisitic thermal constants, theta(char). The change approximately matches the temperature-related increase in a carrier gas viscosity. Accounting for the effect allows reduction in the uncertainty of prediction of theta(char) by a factor or f approximately 2 and, in a constant-pressure mode, description of a linear heating ramp by the same dimensionless rate for all solutes.
authors.affiliation: Fast GC Consulting, Hockessin, Delaware 19707, USA.
authors.forename: L M
authors.initials: LM
authors.lastname: Blumberg
authors.forename: M S
authors.initials: MS
authors.lastname: Klee