H. Kubinyi, SPECTROPHOTOMETRIC ANALYSIS OF MULTICOMPONENT SYSTEMS - THE LAW AND THE ERROR, TrAC. Trends in analytical chemistry, 14(5), 1995, pp. 199-201
Spectrophotometric analysis of multicomponent systems using the Beer-L
ambert law and the assumption of additivity, even with multiple wavele
ngths, may fail if no account is taken of systematic errors. Literatur
e data on a mixture of adenylic acid, cytidylic acid, guanylic acid, a
nd uridylic acid are analyzed by a number of mathematical procedures w
hose results are compared.