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2004•Journal of Jiangxi Normal UniversityRequires access

Synthesis of 1-(4-Nitrophenyl)-3-(5-Chloropyridyl)-Triazene and Its Color Reaction with Copper

Chun-Niu Zhang

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Abstract

This paper reports the synthesis of the new regent 1-(4-nitrophenyl)-3-(5-chloropyridyl)-triazene(NPCPDT) and the color reaction of NPCPDT with copper.In the presence of the surface active agent OP and in the Na_2B_4O_7-NaOH medium of pH 11.0,the reagent form a yellow complex with copper in the molar ratio of 1∶3.The molar absorptivity is 2.42×10~5 L·mol~(-1)·cm~(-1) by the dual-wavelengh of 450 nm and the determination wavelengh of 535 nm. Beer's law is obeyed in the range of 0～0.6 μg/mL.The method has been applied to the direct determ ination of copper in human hair with satisfactory results.

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What this paper is about

This paper reports the synthesis of the new regent 1-(4-nitrophenyl)-3-(5-chloropyridyl)-triazene(NPCPDT) and the color reaction of NPCPDT with copper.In the presence of the surface active agent OP and in the Na_2B_4O_7-NaOH medium of pH 11.0,the reagent form a yellow complex with copper in the molar ratio of 1∶3.The molar absorptivity is 2.42×10~5 L·mol~(-1)·cm~(-1) by the dual-wavelengh of 450 nm and the determination wavelengh of 535 nm. Beer's law is obeyed in the range of 0～0.6 μg/mL.The method has been applied to the direct determ ination of copper in human hair with satisfactory results.

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Available abstract

This paper reports the synthesis of the new regent 1-(4-nitrophenyl)-3-(5-chloropyridyl)-triazene(NPCPDT) and the color reaction of NPCPDT with copper.In the presence of the surface active agent OP and in the Na_2B_4O_7-NaOH medium of pH 11.0,the reagent form a yellow complex with copper in the molar ratio of 1∶3.The molar absorptivity is 2.42×10~5 L·mol~(-1)·cm~(-1) by the dual-wavelengh of 450 nm and the determination wavelengh of 535 nm. Beer's law is obeyed in the range of 0～0.6 μg/mL.The method has been applied to the direct determ ination of copper in human hair with satisfactory results.

Key concepts: Triazene, Reagent, Copper, Molar absorptivity, Color reaction, Chemistry, Nuclear chemistry, Organic chemistry

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Synthesis of 1-(4-Nitrophenyl)-3-(5-Chloropyridyl)-Triazene and Its Color Reaction with Copper — Research Paper | ScholarLens