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2008•Chinese Journal of Analysis LaboratoryRequires access

Determination of micro amount of bismuth in Al alloys by spectrophotometry

Jinquan Guo

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Abstract

A sensitive method for the determination of Bi by spectrophotomctry was developed.Chlorophosphonazo Ⅲ can react with bismuth to form a stable red complex.The results showed that the maximum absorption of the complex is at 510 nm,the molar absorptivity is 1.567×105 L·mol-1·cm-1.Beer′s law was obeyed in the range of 0～0.60 μg/mL.The method was applied to direct determination of Bi in Al alloys and satisfactory results were achieved.

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A sensitive method for the determination of Bi by spectrophotomctry was developed.Chlorophosphonazo Ⅲ can react with bismuth to form a stable red complex.The results showed that the maximum absorption of the complex is at 510 nm,the molar absorptivity is 1.567×105 L·mol-1·cm-1.Beer′s law was obeyed in the range of 0～0.60 μg/mL.The method was applied to direct determination of Bi in Al alloys and satisfactory results were achieved.

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Available abstract

A sensitive method for the determination of Bi by spectrophotomctry was developed.Chlorophosphonazo Ⅲ can react with bismuth to form a stable red complex.The results showed that the maximum absorption of the complex is at 510 nm,the molar absorptivity is 1.567×105 L·mol-1·cm-1.Beer′s law was obeyed in the range of 0～0.60 μg/mL.The method was applied to direct determination of Bi in Al alloys and satisfactory results were achieved.

Key concepts: Molar absorptivity, Chemistry, Bismuth, Spectrophotometry, Absorption (acoustics), Analytical Chemistry (journal), Nuclear chemistry, Chromatography

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