### Determination of Anions in Aqueous Solution by Measuring the Absorption of Radicals and Hydrated Electrons Using a UV LaserDetermination of Anions in Aqueous Solution by Measuring the Absorption of Radicals and Hydrated Electrons Using a UV Laser

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 Author Iwata, Akyhiro ♦ Nakashima, Nobuaki ♦ Izawa, Yasukazu ♦ Yamanaka, Chiyoe Source J-STAGE Content type Text Publisher The Japan Society for Analytical Chemistry Language English
 Subject Keyword Laser flash photolysis ♦ chloride ♦ bromide ♦ iodide ♦ thiocyanate ♦ sulfate ♦ UV laser Abstract The determination of anions in aqueous solution using an ArF laser is described. Chloride ion can be determined down to a level of $4×10^{-7}M$ 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. $Br^{-},$ $I^{-},$ $SCN^{-}and$ $SO_{4}^{2-}were$ determined by measuring the absorption of radicals or hydrated electrons formed upon UV laser irradiation with detection limits of $4×10^{-7},$ $4×10^{-7},$ $1×10^{-6}-and$ $1×10^{-4}M,$ respectively. ISSN 09106340 Learning Resource Type Article Publisher Date 1993-12-10 e-ISSN 13482246 Journal Analytical Sciences(analsci1985) Volume Number 9 Issue Number 6 Page Count 4 Starting Page 807 Ending Page 810