Continuous water quality monitoring of Total Chlorine
ATI’s Q46H/79S uses iodometric chemistry, but with a unique sensing technique for measuring released iodine. The system takes the reacted sample containing iodine and uses an air-stripping system to remove molecular iodine from solution.
Employing an Auto-Chem module to provide chemical treatment of the sample, air stripping of the released iodine, gas sample conditioning and iodine gas measurement, the gas-phase iodine from the water sample is channeled through a conditioning module and then directly to an iodine gas sensor. The result is that the iodine measurement is made without any contact between the water sample and the sensor. Contaminants in the sample that cause fouling and contamination of standard electrodes do not affect the Q46 system, providing greater operational reliability