Analysis of aqueous solutions by near-infrared spectrometry (NIRS). II. Titrations of weak and very weak acids with strong bases.
The titrns. of acetic and H3PO4 with NaOH were obsd. by NIR-spectrometry. The measured spectra can be evaluated quant. for calibration of the H+- and OH--concn. The NIRS errors with respect to the prediction of the pH and the equivalence point are discussed.
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