25 No. 1
January - February 2003
Concepts and Applications
of the Term "Dimensionality" in Analytical Chemistry (IUPAC
by K. Danzer, J. F. van
Staden, and D. T. Burns
and Applied Chemistry,
74, No. 8, pp. 14791487 (2002)
(in z-direction; qualitative signal evaluation, signal
The analytical chemistry community
has used the term "dimensionality" to mean several different
things. On different occasions, analysts speak about "two-dimensional"
analytical methods, for example, 2D nuclear magnetic resonance
spectroscopy, 2D thin-layer chromatography, "two-dimensional"
or "three-dimensional" analytical information, "two-dimensional"
or "three-dimensional" images in surface analytical chemistry,
and of "m-dimensional" analytical data obtained, for example,
as a result of multi-component analyses. These examples show
that the use of the term "dimensionality" is at times contradictory.
This confused position does not promote the unequivocal application
of the term in analytical chemistry. The aim of this document
is to provide a concept for the use of the term "dimensionality"
as it is related to analytical information.
last modified 20 December 2002.
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