Article
Is Golay’s Famous Equation for HETP Still Relevant in Capillary GC? Part 1: A Common View of HETP
LCGC North America
(2022)
Abstract
In this instalment of “GC Connections”, we take a close look at Golay’s famous equation that most people view as relating height equivalent to a theoretical plate (HETP) to the carrier gas flow rate or average linear gas velocity in a capillary column. We explore the original works of Golay and Keulemans. We also look closely at the original equation, the assumptions involved with its development, and the assumptions (both good and bad) that have been applied to HETP over the years. In part two, we will explore the consequences and relevance of this theory today, with temperature programming, very long (and very short) columns, high pressure drops, and vacuum outlet detectors.
Disciplines
Publication Date
January 1, 2022
Citation Information
Nicholas Snow. "Is Golay’s Famous Equation for HETP Still Relevant in Capillary GC? Part 1: A Common View of HETP" LCGC North America Vol. 40 Iss. 1 (2022) p. 22 - 26,31 ISSN: 1939-1889 Available at: http://works.bepress.com/nicholas_snow/72/