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2010•Journal of Zhengzhou UniversityRequires access

Spectrophotometric Determination of Trace Silver with 1-(4-Nitrophenyl)-3-(4-antipyrineyl)-triazene as Color Reagent

Chao Wang

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Abstract

1-(4-Nitrophenyl)-3-(4-antipyrineyl)-triazene(NPAPT) has been synthesized. A new spectrophotometric method for the determination of silver(I),which is more sensitive and selective,is developed based on the color reaction between NPAPT and silver(I).Its apparent molar absorptivity is 1.26×105 L/(mol·cm).The maximum absorption of the complex is at 530 nm,and Beer's law is obeyed for 0 to 460 μg/L Ag.The method has been employed to determine the trace amounts of silver(I) in developer waste with satisfactory results.

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1-(4-Nitrophenyl)-3-(4-antipyrineyl)-triazene(NPAPT) has been synthesized. A new spectrophotometric method for the determination of silver(I),which is more sensitive and selective,is developed based on the color reaction between NPAPT and silver(I).Its apparent molar absorptivity is 1.26×105 L/(mol·cm).The maximum absorption of the complex is at 530 nm,and Beer's law is obeyed for 0 to 460 μg/L Ag.The method has been employed to determine the trace amounts of silver(I) in developer waste with satisfactory results.

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Available abstract

1-(4-Nitrophenyl)-3-(4-antipyrineyl)-triazene(NPAPT) has been synthesized. A new spectrophotometric method for the determination of silver(I),which is more sensitive and selective,is developed based on the color reaction between NPAPT and silver(I).Its apparent molar absorptivity is 1.26×105 L/(mol·cm).The maximum absorption of the complex is at 530 nm,and Beer's law is obeyed for 0 to 460 μg/L Ag.The method has been employed to determine the trace amounts of silver(I) in developer waste with satisfactory results.

Key concepts: Molar absorptivity, Triazene, Reagent, Color reaction, Chemistry, Spectrophotometry, Trace Amounts, Absorption (acoustics)

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