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2011•Journal of Xinzhou Teachers UniversityRequires access

New Synthesis of Triazene Reagent and Its Color Reaction with Cd(II)

Wang Shou-lan

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Abstract

The physical and chemical properties of the newly synthesized reagent 4-Methoxy-3-sulfobenzenediazoaminoazobenzene and its highly sensitive color reaction with Cd(Ⅱ)have been studied.In the presence of Triton X-100,MeOSDAA reacts withCd(Ⅱ)to form a stable orangered complex with molar ratio of 2:1 in Na2B4O7-NaOH buffer solution(pH=9.5～11.6).The apparent molar absorptivity is 7.56×104L·mol-1·cm-1 at the maximun absorption wavelength of 540nm.Beer's law is obeyed in the concentration range of 0～10μg Cd(Ⅱ)in 25mL solution.

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What this paper is about

The physical and chemical properties of the newly synthesized reagent 4-Methoxy-3-sulfobenzenediazoaminoazobenzene and its highly sensitive color reaction with Cd(Ⅱ)have been studied.In the presence of Triton X-100,MeOSDAA reacts withCd(Ⅱ)to form a stable orangered complex with molar ratio of 2:1 in Na2B4O7-NaOH buffer solution(pH=9.5～11.6).The apparent molar absorptivity is 7.56×104L·mol-1·cm-1 at the maximun absorption wavelength of 540nm.Beer's law is obeyed in the concentration range of 0～10μg Cd(Ⅱ)in 25mL solution.

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Available abstract

The physical and chemical properties of the newly synthesized reagent 4-Methoxy-3-sulfobenzenediazoaminoazobenzene and its highly sensitive color reaction with Cd(Ⅱ)have been studied.In the presence of Triton X-100,MeOSDAA reacts withCd(Ⅱ)to form a stable orangered complex with molar ratio of 2:1 in Na2B4O7-NaOH buffer solution(pH=9.5～11.6).The apparent molar absorptivity is 7.56×104L·mol-1·cm-1 at the maximun absorption wavelength of 540nm.Beer's law is obeyed in the concentration range of 0～10μg Cd(Ⅱ)in 25mL solution.

Key concepts: Molar absorptivity, Reagent, Color reaction, Triazene, Chemistry, Buffer solution, Molar ratio, Absorption (acoustics)

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