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Study on Color reaction of Diantipyrylvinylphenylmethane with Cerium(IV)and Its Application

Li Zai

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Abstract

A high sensitive spectrophotometric method for the determination of trace cerium(Ⅳ)has been developed. In H 3PO 4 medium, cerium(Ⅳ)reacts with diantipyrylvinylphenylmethane to form a red compound with an absorption maximum at 540nm. The apparent molar absorptivity is 2.3×10 5·L·mol -1 ·cm -1 . Beer's law is obeyed over the concentration range of 0-6μg/25mL for cerium(Ⅳ). The method can tolerance other rare earths in considerable amount, The proposed method has been used to determination of cerium with satisfactory results.

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What this paper is about

A high sensitive spectrophotometric method for the determination of trace cerium(Ⅳ)has been developed. In H 3PO 4 medium, cerium(Ⅳ)reacts with diantipyrylvinylphenylmethane to form a red compound with an absorption maximum at 540nm. The apparent molar absorptivity is 2.3×10 5·L·mol -1 ·cm -1 . Beer's law is obeyed over the concentration range of 0-6μg/25mL for cerium(Ⅳ). The method can tolerance other rare earths in considerable amount, The proposed method has been used to determination of cerium with satisfactory results.

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Available abstract

A high sensitive spectrophotometric method for the determination of trace cerium(Ⅳ)has been developed. In H 3PO 4 medium, cerium(Ⅳ)reacts with diantipyrylvinylphenylmethane to form a red compound with an absorption maximum at 540nm. The apparent molar absorptivity is 2.3×10 5·L·mol -1 ·cm -1 . Beer's law is obeyed over the concentration range of 0-6μg/25mL for cerium(Ⅳ). The method can tolerance other rare earths in considerable amount, The proposed method has been used to determination of cerium with satisfactory results.

Key concepts: Cerium, Molar absorptivity, Chemistry, Color reaction, Trace Amounts, Spectrophotometry, Absorption (acoustics), Nuclear chemistry

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