Abstract
It is shown that binary mixtures of inorganic salts in aqueous solutions can be analyzed quantitatively by near-infrared spectrometry (NIRS). Each component influences the structure of water by miscellaneous cation/anion-OH interactions causing specific effects in the NIR spectra which can be evaluated in a quantitative way. The calibrations described were performed using principle component regression (PCR) and optimised with respect to the standard error of analysis (SEA).
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