What is the name of the titrating device used to measure chlorine in water samples?

The titrating device used to measure chlorine in water samples is the amperometric titrator. This device operates based on the principle of measuring the flow of electric current that occurs during the reaction of chlorine with a titrant. In this context, when chlorine is present in the water sample, it reacts with the titrant, and the amperometric titrator measures the resulting current, which provides a precise quantification of chlorine levels.

The amperometric titration method is particularly advantageous for determining chlorine concentration because it is sensitive, allowing for accurate measurements even at low concentration levels, which is crucial in water quality analysis. This method is frequently utilized in drinking water testing due to its reliability and effectiveness.

In contrast, the other devices mentioned serve different purposes. A volumetric titrator is used for titration methods involving measuring the volume of a solution, which is less specific for measuring chlorine directly. A colorimetric analyzer measures the intensity of color in a sample, which may be suitable for certain analyses but is not a titration method. A conductivity meter measures the electrical conductivity of water, which can provide indirect information about ion concentrations but does not specifically quantify chlorine concentrations.