The Orion Chlorine XP online process analyzer from Thermo Fisher Scientific uses colorimetric DPD chemistry to continuously measure total and free chlorine. Designed for low cost of ownership, extended reagent use and increased accuracy, the analyzer combines multiple measurements in one unit.“You can have free chlorine only, total chlorine only, free and total chlorine with pH and free and total chlorine without pH,” says Manav Randhawa, product marketing manager for Thermo Fisher Scientific. The analyzer also can measure routine water-quality parameters.“One of the key things this product has is the ability to achieve a minimum detection limit of 10 ppb
