A Simple and Sensitive Spectrophotometric Method for the Determination of Trace Ruthenium with its Catalytic Effect on the Oxidation of Rhodamine 6G by KBrO3 in Micellar Media

Zhi Rong Zhou; Li Zhen Zhang

doi:10.4028/www.scientific.net/AMM.217-219.2397

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A Simple and Sensitive Spectrophotometric Method for the Determination of Trace Ruthenium with its Catalytic Effect on the Oxidation of Rhodamine 6G by KBrO₃ in Micellar Media
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 217-219A Simple and Sensitive Spectrophotometric Method...

A Simple and Sensitive Spectrophotometric Method for the Determination of Trace Ruthenium with its Catalytic Effect on the Oxidation of Rhodamine 6G by KBrO₃ in Micellar Media

Abstract:

A simple catalytic kinetic spectrophotometric method was developed for the determination of trace Ru (III) in the range of 0.033–1.00 μg/L. The method is based on the catalytic effect of Ru (III) on the oxidation of rhodamine 6G (Rh 6G) by bromate in micellar media. The reaction was monitored spectrophotometrically by measuring the decrease in the absorbance of Rh 6G at 520 nm with a fixed-time method. The limit of detection is 0.010 μg/L Ru (III). The relative standard deviation for the determination of 0.010 and 0.020 μg/25mL Ru (III) was 2.9 % and 2.5 %, respectively. The method was applied to the determination of Ru (III) in some ores and metallurgy products.

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Periodical:

Applied Mechanics and Materials (Volumes 217-219)

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2397-2401

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https://doi.org/10.4028/www.scientific.net/AMM.217-219.2397

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Online since:

November 2012

Authors:

Zhi Rong Zhou, Li Zhen Zhang

Keywords:

Catalytic Kinetic Spectrophotometry, Micellar Media, Potassium Bromate, Rhodamine 6G, Ruthenium (III)

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