Determination of Silver with Mercaptans (III). Amperometric Titration of Silver with 2-Mercaptothiazoline

Mercapto 화합물에 의한 은의 정량 (제3보). 2-Mercaptothiazoline에 의한 은의 전류적정

  • Young Gu Ha (Department of Chemistry, College of General Studies, Seoul National University)
  • 하영구 (서울대학교 교양과정부 화학과)
  • Published : 1973.12.30

Abstract

2-Mercaptothiazoline is very sensitive reagent for silver, which have been used for highly selective amperometric determination of silver. A method is described for the determination of micro-quantity of silver by amperometric titration with 2-mercaptothiazoline in ammonical solution. Direct titration of milligram amount of silver (0.05∼1.00mg) is possible in the presence of a number of foreign ions in ammonical solution containing ethylenediaminetetraacetic acid as masking agent under atmosphere. The interfering elements are gold and platinum. The milligram amounts of silver can be determined by the proposed method within an error ${\pm}$5%.

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References

  1. Recueil Trav. Chim. PaysBas (Amsterdam) v.2 Kolthoff;Laitinen
  2. Amperometric Titration John T. Stock
  3. Z. Anal. Chem. v.212 R.S. Saxena;P. O. Sharma
  4. Chem. Listy v.46 Dolezal J. V.;Hencl;V. Simon
  5. Talanta v.13 no.8 B. C. Bera;M.M. Charkrabartty
  6. This Journal v.17 Young Gu Ha;Q. Won Choi
  7. Seoul Natl. Univ., J. Natural Science v.5 Young Gu Ha
  8. Polarography Interscience Publishers