SEARCH Articles Figures Tables Abstract elution profiles, represented by the eigenvectors of the variance-covariance metrix of a HPLC-UV-VIS data matrix of spectra. From B. G. M. Vandeginste, W. Derks, G. Kateman, Anal, Chim. Acta 173, 259 . Reproduced by permission of Elsevier Science Publishers, Amsterdam [Publishers Imprint]