Determination of Selenium in Ion Chromatography Bulk Prednisolone by

نویسندگان

  • Mitsunori MURAYAMA
  • Masao SUZUKI
  • Shoji TAKITANI
چکیده

A method for the determination of selenium by ion chromatography (IC) after oxygen flask combustion has been developed and applied to the determination of selenium in bulk prednisolone. We found elemental selenium [Se(0)], selenite ion [Se(IV)] and selenate ion [Se(VI)] (ca. 5, 75 and 20%) in the absorbing liquid obtained by oxygen flask combustion of Se(0), Se(IV) and Se(VI). Se(VI) was directly determined by IC. Se(IV) was determined as Se(VI) after oxidation by potassium permanganate. Se(0) was oxidized to Se(VI) by hydrogen peroxide and potassium

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تاریخ انتشار 2006