PROCESS OF MEASURING CHEMICAL AND PHYSICAL PARAMETERS FOR CHARACTERISATION AND CLASSIFICATION OF AQUEOUS SUSPENSIONS

摘要

Method of determining amounts of chemical compounds and quality parameters of physical and chemical character in various water types and aqueous suspensions such as waste water, process water and sea/lake-water and a method of classifying samples, both methods based on (a) that the sample is unfiltered; (b) that spectroscopic absorbence measurements at several discrete wavelengths within the ultraviolet and visible electromagnetic area are performed on the sample; (c) that during an extensive calibration, spectroscopic measurements at several discrete wavelengths within the ultraviolet and visible electromagnetic area already are performed on a large number of aqueous solutions having a known chemical composition and known values for physical quality parameters; and (d) that all data obtained according to (b) and (c) together with the numeric quantities describing the known chemical composition of the aqueous solutions used during the calibration are processed mathematically-statistically by means of algorithms in a partial least squares (PLS) model.