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2003•Journal of Dali CollegeRequires access

Rhodamine S and Tungstate Determination of Trace Bismuth

Fu Wang

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Abstract

Spectrophotometric determination of bismuth (Ⅲ) has been studied in the presence of polyvinyl alcohol (PVA) . Bismuth (Ⅲ) reacts with tungstate and rhodamine S to form the ion associated complex . Its apparent molar absorptivity is 7.73×107 L.mol - 1.cm- 1 at 565nm . Beer's Law is obeyed in the range of 3.0 to 27.5 ng/25mL for bismuth. The ion associated of diverse ions is reported . The method was applied to the determionation of bismuth in nature water . rain . drinking water , and the results were satisfactory.

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What this paper is about

Spectrophotometric determination of bismuth (Ⅲ) has been studied in the presence of polyvinyl alcohol (PVA) . Bismuth (Ⅲ) reacts with tungstate and rhodamine S to form the ion associated complex . Its apparent molar absorptivity is 7.73×107 L.mol - 1.cm- 1 at 565nm . Beer's Law is obeyed in the range of 3.0 to 27.5 ng/25mL for bismuth. The ion associated of diverse ions is reported . The method was applied to the determionation of bismuth in nature water . rain . drinking water , and the results were satisfactory.

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Available abstract

Spectrophotometric determination of bismuth (Ⅲ) has been studied in the presence of polyvinyl alcohol (PVA) . Bismuth (Ⅲ) reacts with tungstate and rhodamine S to form the ion associated complex . Its apparent molar absorptivity is 7.73×107 L.mol - 1.cm- 1 at 565nm . Beer's Law is obeyed in the range of 3.0 to 27.5 ng/25mL for bismuth. The ion associated of diverse ions is reported . The method was applied to the determionation of bismuth in nature water . rain . drinking water , and the results were satisfactory.

Key concepts: Bismuth, Tungstate, Molar absorptivity, Polyvinyl alcohol, Rhodamine B, Chemistry, Rhodamine, Inorganic chemistry

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