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Pure Appl. Chem., 2004, Vol. 76, No. 6, pp. 1215-1225


Guidelines for calibration in analytical chemistry. Part 2: Multicomponent calibration (IUPAC Technical Report)

K. Danzer*, M. Otto and L. A. Currie

Calibration in analytical chemistry refers to the relation between sample domain and measurement domain (signal domain) expressed by an analytical function x = fs(Q) representing a pattern of chemical species Q and their amounts or concentrations x in a given test sample on the one hand and a measured function y = f(z) that may be a spectrum, chromatogram, etc.
Simultaneous multispecies analyses are carried out mainly by spectroscopic and chromatographic methods in a more or less selective way. For the determination of n species Qi (i = 1,2 …n), at least n signals must be measured which should be well separated in the ideal case. In analytical practice, the situation can be different.