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Capitán-Vallvey, L.F., Navas, N., Avidad, R. et al. Simultaneous Determination of Colorant Mixtures Used in Cosmetics by Partial Least-Squares Multivariate Calibration Spectrophotometry. ANAL. SCI. 13, 493–496 (1997). https://doi.org/10.2116/analsci.13.493
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DOI: https://doi.org/10.2116/analsci.13.493