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2006•Unpublished venueRequires access

Study of a Method for Determination of Rhodium by Catalytic Kinetic Spectrophotometry

Zheng Zhen-feng

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Abstract

Based on the catalytic effects of rhodium (Ⅲ) on the colour fading reactions of Rhodamine S by oxidizing with KIO4, a tentative programme of a new catalytic spectrophotometric method for the determination of rhodium(Ⅲ) has been developed. The results show that under an opportune condition, the method has higher sensitivity, the detection limit was 5.0×10-6g/L ,and the linear range of the determination was 10-140μg/L0 The relative standard deviation for the determination of Rh(Ⅲ)at the concentration of 1μg /10ml Rh(Ⅲ) was calculated as 1.60% (n=10).

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What this paper is about

Based on the catalytic effects of rhodium (Ⅲ) on the colour fading reactions of Rhodamine S by oxidizing with KIO4, a tentative programme of a new catalytic spectrophotometric method for the determination of rhodium(Ⅲ) has been developed. The results show that under an opportune condition, the method has higher sensitivity, the detection limit was 5.0×10-6g/L ,and the linear range of the determination was 10-140μg/L0 The relative standard deviation for the determination of Rh(Ⅲ)at the concentration of 1μg /10ml Rh(Ⅲ) was calculated as 1.60% (n=10).

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Available abstract

Based on the catalytic effects of rhodium (Ⅲ) on the colour fading reactions of Rhodamine S by oxidizing with KIO4, a tentative programme of a new catalytic spectrophotometric method for the determination of rhodium(Ⅲ) has been developed. The results show that under an opportune condition, the method has higher sensitivity, the detection limit was 5.0×10-6g/L ,and the linear range of the determination was 10-140μg/L0 The relative standard deviation for the determination of Rh(Ⅲ)at the concentration of 1μg /10ml Rh(Ⅲ) was calculated as 1.60% (n=10).

Key concepts: Rhodium, Detection limit, Spectrophotometry, Rhodamine 6G, Catalysis, Potassium periodate, Oxidizing agent, Chemistry

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