Simultaneous determination of fats used by the leather tanning industry: Monitoring of fatliquoring baths

M. Blanco, T. Canals, J. Coello, J. Gené, H. Iturriaga, S. Maspoch, K. Mora

Research output: Contribution to journalArticleResearchpeer-review

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Abstract

The simultaneous spectrophotometric determination of fats in mixtures used by the leather tanning industry by use of a rigid multivariate calibration method is reported. Mixtures of analytes with overlapped UV-vis spectra were quantified with relative standard errors of prediction (RSEP) less than 3%, that increase, in the presence of high co-linearity. Fat and dye mixtures can be resolved with RSEP values below 4%. The ensuing method was used to monitor fatliquoring and fatliquoring/dyeing baths as a means for the expeditious control of exhaustion in the leather fatliquoring bath. The method's simplicity makes it amenable to automatic implementation even in quite simple flow manifolds.
Original languageEnglish
Pages (from-to)96-100
JournalJournal of the Society of Leather Technologists and Chemists
Volume83
Issue number2
Publication statusPublished - 1 Jan 1999

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