De pa rtm e n t o f Ch e m is tr y, Fa cult y o f Science, H iros h ima U n ive rsit y, H ig as h is en da -mach i, Na kaku, H iroshima-shi 730, Japan Hiroshi Sunahara De pa rtm en t o f En viro n men ta I Science, Facu It y o f Engineering, H iros h ima U n ive rsit y, Sh ita m i, Sa ijo -ch 0,

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The reducing elution of chromium(VI) by anion exchange using sodium sulfite has been investigated. Chromium(VI) is reduced to chromium(III), which is eluted quickly and easily separated from interfering substances by colorimetry using diphenylcarbazide.

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