Synthesis of 1-(4-Antipyrine)-3-(3-Nitroaniline)-Triazene and its Color Reaction with Mercury(II)

Wen Bin Chen; Wei Xing Ma; Xing You Xu

doi:10.4028/www.scientific.net/AMR.455-456.895

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 455-456Synthesis of...

Synthesis of 1-(4-Antipyrine)-3-(3-Nitroaniline)-Triazene and its Color Reaction with Mercury(II)

Abstract:

The synthesis of a new triazene reagent 1-(4-antipyrine)-3-( 3-nitroaniline)-triazene (ANTA) and its color reaction with Hg (Ⅱ) was studied and a new spectrophotometric method for the determination of Hg (Ⅱ) was established. The results showed that in the presence of micromulsion Tween-80, ASTA could reacted with Hg ( Ⅱ) to form a red stable complex of which the molar ratio of reagent︰metal was 2︰1 in Na₂B₄O₇-NaOH medium.. The maximum absorption peak of the complex was located at 495 nm with the apparent molar absorption of 3.8 ×10⁵L·mol^-1·cm^-1. Beer′s law was obeyed in the range of 0.32～10 μg/10 mL for Hg ( Ⅱ) and the detection limit was 0.10 mg/L. Many ions did not interfere the colour reaction system due to the existence of ammonia. This method was applied to determination of Hg (Ⅱ) in lead-zinc ore samples, and the results were in accordance with those obtained by AAS method. Recovery was in the range of 103.0～103.2 % and the RSD(n=6) was not more than 4.6%.

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Periodical:

Advanced Materials Research (Volumes 455-456)

Pages:

895-900

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.455-456.895

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Online since:

January 2012

Authors:

Wen Bin Chen, Wei Xing Ma, Xing You Xu

Keywords:

1-(4-Antipyrine)-3-(3-Nitroaniline)-Triazene, Mercapto-Dextrangel, Mercury(II), Spectrophometry

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