Simultaneous determination of uranium(IV) and iron(II) with a stopped-flow inductive kinetic spectrophotometric method |
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Authors: | W. Jianhua H. Ronghuan |
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Affiliation: | (1) Department of Chemistry, Yantai Teacher's College, Yantai, P.R. China |
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Abstract: | A kinetic method for simultaneous determination of multielements is proposed, and a procedure for simultaneous determination of uranium(VI) and iron(II) is established based on their inductive effect on the chromium(VI)-iodide redox reaction in weak acidic medium. The reaction was monitored with the stopped-flow spectrophotometric technique by using I3–-starch complex as indicator. The calibration graphs are linear for 0–3.6 g.cm–3 U(IV), and 0–2.5 g.cm–3 Fe(II), respectively. Most foreign ions, except for V(IV), Sb(III), do not interfere with the determination. |
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