A number indicative of column performance, calculated from the following equations
which depend on the selection of the peak width expression:
The value of 5.545 stands for
. These expressions assume a Gaussian (symmetrical) peak. In these expressions the
units for the quantities inside the brackets must be consistent so that their ratio
is dimensionless: i.e. if the numerator is a volume, then peak width must also be
expressed in terms of volume. In former nomenclature the expressions '
number of theoretical plates' or '
theoretical plate number' were used for the same term. For simplification, the present name is suggested.
Source:
PAC, 1993, 65, 819
(Nomenclature for chromatography (IUPAC Recommendations 1993))
on page 847
Cite as:
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by
A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997).
XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic,
J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8.
https://doi.org/10.1351/goldbook.