Paper Title:
Synthesis of 1-(4-Antipyrine)-3-(Sulfanilic Acid)-Triazene and Study on Determination of Zinc(II) in Water Samples by Spectrophotometry
  Abstract

The synthesis of a new triazene reagent 1-(4-antipyrine)-3-(sulfanilic acid)-triazene (ASTA) and is proposed as a new sensitive reagent for the extractive spectrophotometric determination of Zinc(II) was established. The results showed that in the presence of micromulsion Tween-80, ASTA could reacted with Zn ( 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 520 nm with the apparent molar absorption of 1.7×105 L•mol-1•cm-1. Beers law was obeyed in the range of 0.3~5.0 μg/10 mL for Zn (Ⅱ) and the detection limit was 0.11 mg/L. Many ions did not interfere the colour reaction system due to the existence of ammonia. This method was applied to determination of Zn (Ⅱ) in water samples, and the results were in accordance with those obtained by AAS method. Recovery was in the range of 96.5~101.5 % and the RSD(n=6) was not more than 1.4%.

  Info
Periodical
Advanced Materials Research (Volumes 347-353)
Chapter
Chapter 1: Development and Utilization of Solar Energy
Edited by
Weiguo Pan, Jianxing Ren and Yongguang Li
Pages
1431-1435
DOI
10.4028/www.scientific.net/AMR.347-353.1431
Citation
P. H. Zhu, W. B. Chen, "Synthesis of 1-(4-Antipyrine)-3-(Sulfanilic Acid)-Triazene and Study on Determination of Zinc(II) in Water Samples by Spectrophotometry", Advanced Materials Research, Vols. 347-353, pp. 1431-1435, 2012
Online since
October 2011
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Price
$32.00
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