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 language | English |
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Pages (from-to) | 96-100 |
Journal | Journal of the Society of Leather Technologists and Chemists |
Volume | 83 |
Issue number | 2 |
Publication status | Published - 1 Jan 1999 |