A priori estimates of the elution profiles of the pure components in overlapped liquid chromatography peaks using target factor analysis

molar absorptivity vectors (eigenspectra) and is calculated from eq 8. [C],,, is the set of abstract concentration vectors calculated by eq 9. Figure 2 shows a plot of [AI [QI = [CI abst (9 1 the abstract concentration vectors produced by decomposition of the raw data matrix [A] illustrated in Figure 1. The term “abstract” is used here to indicate that neither the abstract concentration vectors nor the abstract eigenspectra represent physically meaningful quantities. Unfortunately, the abstract matrices are related to the real matrices through an unknown, nonorthogonal rotation. The remaining problem is to find the best transformation matrix [TI, which rotates the abstract 208 J . Chem. In$ Comput. Sci., Vol. 24, No. 4, 1984 absorption and concentration matrices to an estimate of their real form according to [Clre., = [CIabst[Tl (10) [El real = [TI-’ [El abst (1 1)

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