Citation: Zhi Gang SHE, Chu Ru GoNG, Yi LUO, Ming Hua YANG. Synthesis of 1-(4-Antipyrinyl)-3-(3-Chlorophenyl)-Triazene and Its Colour Reaction with Mercury[J]. Chinese Chemical Letters, ;1997, 8(12): 1069-1070. shu

Synthesis of 1-(4-Antipyrinyl)-3-(3-Chlorophenyl)-Triazene and Its Colour Reaction with Mercury

a Department of Pharmacy, Guangdong College of Pharmacy, Guangzhou 510224;
b Department of Chemistry Hubei Normal University, Huangshi 435002

Received Date: 20 August 1997

A new diazoamino reagent 1-(4-antipyrinyl)-3-(3-Chlorophenyl)-triazene(APCPT) was synthesized.The colour reaction of APCPT with Hg(Ⅱ) was studied.At pH=10.5~12.2,in the presence of Tween-80,APCPT reacts with Hg(Ⅱ) to form a red complex with high sensitivity.The molar ratio of Hg(Ⅱ) to APCPT is 1:2.The molar absorptivity is 1.87×10⁵L·mol^-1·cm^-1.Beer's law is obeyed for Hg in the range of 0-16μg/25ml.
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