Abstract
The determination of anions in aqueous solution using an ArF laser is described. Chloride ion can be determined down to a level of 4×10-7M by measuring the absorption of Cl formed by ArF laser irradiation using a multiple-reflection method with a helium-cadmium laser (λ=325nm) as the monitoring light source. Br-, I-, SCN-and SO42-were determined by measuring the absorption of radicals or hydrated electrons formed upon UV laser irradiation with detection limits of 4×10-7, 4×10-7, 1×10-6-and 1×10-4M, respectively.
