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2006•Journal of Yunnan Normal UniversityRequires access

Synthesis of a new reagent 1-(4-Nitrophenyl)-3-(5-Methypyridyl)-Triazene and its color reaction with cadmium

Zhan Yin-hu

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Abstract

This paper reports the synthesis of the new regent 1-(4-nitrophenyl)-3-(3-methypyridyl)-triazene(NPMPDT) and the color reaction of NPMPDT with cadmium.In the presence of the surface active agent Triton X-100 and in the Na_2B_4O_7-NaOH medium of pH 11.5,the reagent form ayellow complex with cadmium in the molar ratio of 1:4.The molar absorptivity is 2.45×105L·mol~(-1)·cm~(-1) by dual-wavelengh of 450nm and determination wavelengh of 540nm.Beer's law is obeyed in the range of 0~12μg/25mL.The method has been applied to the direct determ ination of cadmium in human hair and waster water with satisfactory results.

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This paper reports the synthesis of the new regent 1-(4-nitrophenyl)-3-(3-methypyridyl)-triazene(NPMPDT) and the color reaction of NPMPDT with cadmium.In the presence of the surface active agent Triton X-100 and in the Na_2B_4O_7-NaOH medium of pH 11.5,the reagent form ayellow complex with cadmium in the molar ratio of 1:4.The molar absorptivity is 2.45×105L·mol~(-1)·cm~(-1) by dual-wavelengh of 450nm and determination wavelengh of 540nm.Beer's law is obeyed in the range of 0~12μg/25mL.The method has been applied to the direct determ ination of cadmium in human hair and waster water with satisfactory results.

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Available abstract

This paper reports the synthesis of the new regent 1-(4-nitrophenyl)-3-(3-methypyridyl)-triazene(NPMPDT) and the color reaction of NPMPDT with cadmium.In the presence of the surface active agent Triton X-100 and in the Na_2B_4O_7-NaOH medium of pH 11.5,the reagent form ayellow complex with cadmium in the molar ratio of 1:4.The molar absorptivity is 2.45×105L·mol~(-1)·cm~(-1) by dual-wavelengh of 450nm and determination wavelengh of 540nm.Beer's law is obeyed in the range of 0~12μg/25mL.The method has been applied to the direct determ ination of cadmium in human hair and waster water with satisfactory results.

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

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Synthesis of a new reagent 1-(4-Nitrophenyl)-3-(5-Methypyridyl)-Triazene and its color reaction with cadmium — Research Paper | ScholarLens