Water analyzer

chlorineacidtotal organic carbon

As for multiparametric analyzers, they are instruments used to measure different chemical parameters simultaneously. In the context described, multiparametric analyzers are used to measure free chlorine, free ozone, paracetic acid, nitrates, C.O.D. (Chemical Oxygen Demand), hydrocarbons and T.O.C. (Total Organic Carbon). The measurement of these chemical parameters is carried out using the photometric method, which is based on the ability of some chemical reagents to develop a color proportional to the concentration of a target substance. Photometry exploits the ability of the molecules present in the sample to absorb light, which varies based on the concentration of the substance to be measured. In the case of free chlorine, a reagent called DPD (N,N-diethyl-p-phenylenediamine) is used which reacts with the chlorine in the water, generating a pink color. Measuring the absorbance of this color allows you to determine the concentration of free chlorine. The same principle is also applied for the measurement of total chlorine, chlorine dioxide, ozone, paracetic acid, bromine and permanganate.