Enrichment and spectrophotometric determination of a trace amount of chromium(VI) as the diphenylcarbazide complex on a mixed resin prepared from finely divided anion and cation exchangers.

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概要

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• A rapid and sensitive method has been developed for the determination of a trace amount of chromium(VI). It is based on the pre-concentration of chromium(VI) as the diphenylcarbazide (DPC) complex on a mixed resin prepared from finely divided anion and cation exchangers and the subsequent measurement of absorbance of the resin phase after collection on a filter paper as a uniform thin layer. The sensitivity of the method is approximately 100 times higher than the ordinary solution method using 1-cm cell. The extraction of chromium(VI) with tributyl phosphate followed by back extraction into water is effective for reducing the influence of interfering ions.

• 公益社団法人 日本化学会の論文

著者

• Ohzeki Kunio

  Department of Chemistry, Faculty of Science, Hokkaido University

• Sakuma Toshiaki

  Department of Chemistry, Faculty of Science, Hokkaido University

関連論文

• Enrichment and spectrophotometric determination of a trace amount of chromium(VI) as the diphenylcarbazide complex on a mixed resin prepared from finely divided anion and cation exchangers.

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