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Spectrophotometric Determination of Trace Manganese(II) by Catalytic Decolourization

Ningning Zhu

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Abstract

The decolourizing reaction of potassium periodate with fuchsine in HAc-NaAc solution can be catalyzed by managenese(II) in the presence of nitrilotriacetic acid. The optimum condition for the catalytic decolourizing reaction was investigated. A linear range is obtained from 0.20 to 19.9 ng/mL of Mn(II), and the minimum detactable concetration of Mn(II) is 5.24×10~ -11 g/mL. This method is satisfactorily applied to the determination of Mn(II) in nature water and flour.

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What this paper is about

The decolourizing reaction of potassium periodate with fuchsine in HAc-NaAc solution can be catalyzed by managenese(II) in the presence of nitrilotriacetic acid. The optimum condition for the catalytic decolourizing reaction was investigated. A linear range is obtained from 0.20 to 19.9 ng/mL of Mn(II), and the minimum detactable concetration of Mn(II) is 5.24×10~ -11 g/mL. This method is satisfactorily applied to the determination of Mn(II) in nature water and flour.

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Available abstract

The decolourizing reaction of potassium periodate with fuchsine in HAc-NaAc solution can be catalyzed by managenese(II) in the presence of nitrilotriacetic acid. The optimum condition for the catalytic decolourizing reaction was investigated. A linear range is obtained from 0.20 to 19.9 ng/mL of Mn(II), and the minimum detactable concetration of Mn(II) is 5.24×10~ -11 g/mL. This method is satisfactorily applied to the determination of Mn(II) in nature water and flour.

Key concepts: Potassium periodate, Nitrilotriacetic acid, Manganese, Chemistry, Catalysis, Linear range, Nuclear chemistry, Inorganic chemistry

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