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2004•Chinese Journal of Spectroscopy LaboratoryRequires access

Synthesis of 2-Hydroxy-4-Sulfamylbenzendiazoaminoazobenzene and Its Colour Reaction with Zinc

Chun Zhang

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Abstract

The 2-hydroxy-4-sulfamylbenzendiazoaminoazobenzene(HSDAA) was synthesized.In Na 2B 4O 7-NaOH medium of pH=9.5—11.5 with surface active agent of triton X-100,HSDAA forms a 1∶2 red complex with Zn(Ⅱ).The molar absorbability of the complex is e=1.24×10 5L·mol·cm -1 at 530nm.The Beer's law is well obeyed in the range of 0—480μg/L for zinc.This method was used to determine trace amounts of zinc in sample with satisfactory results.

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The 2-hydroxy-4-sulfamylbenzendiazoaminoazobenzene(HSDAA) was synthesized.In Na 2B 4O 7-NaOH medium of pH=9.5—11.5 with surface active agent of triton X-100,HSDAA forms a 1∶2 red complex with Zn(Ⅱ).The molar absorbability of the complex is e=1.24×10 5L·mol·cm -1 at 530nm.The Beer's law is well obeyed in the range of 0—480μg/L for zinc.This method was used to determine trace amounts of zinc in sample with satisfactory results.

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Available abstract

The 2-hydroxy-4-sulfamylbenzendiazoaminoazobenzene(HSDAA) was synthesized.In Na 2B 4O 7-NaOH medium of pH=9.5—11.5 with surface active agent of triton X-100,HSDAA forms a 1∶2 red complex with Zn(Ⅱ).The molar absorbability of the complex is e=1.24×10 5L·mol·cm -1 at 530nm.The Beer's law is well obeyed in the range of 0—480μg/L for zinc.This method was used to determine trace amounts of zinc in sample with satisfactory results.

Key concepts: Zinc, Color reaction, Chemistry, Nuclear chemistry, Molar ratio, Spectrophotometry, Inorganic chemistry, Chromatography

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