Determination of Copper, Lead, Cadmium and Zinc in Water by Square Wave Polarography with Dithizone-Chloroform Extraction Method

디티존-클로로포름 抽出, 短形波폴라로그래피에 의한 물중의 구리, 납, 카드뮴 및 아연의 定量

  • Su-Chan Moon (Department of Chemistry, College of Libral Arts and Science, Busan National University)
  • 문수찬 (부산대학교 문리과대학 화학과)
  • Published : 1975.12.30

Abstract

500 ml of a sample water was extracted with 10 ml of 0.01 % dithizone-$CHCl_3$three times. When $CHCl_3$ layer was back extracted with 10 ml of 0.1 N HCl containing mercuric ion, the free metal ions come into aqueous layer. The aqueous layer was added with 2 ml of 2 N KCl and was washed with 10 ㎖ of $CHCl_3$two times in order to remove the trace dithizone, and then was recorded square wave polarogram. The concentration of copper, lead and cadmium can be determined up to 3 ppb and that of zinc up to 14 ppb with an error of 10 %.

Keywords

References

  1. Rev. Polarog. v.7 K. Matsumoto
  2. J. Electroanal. Chem. v.27 T. M. Florence
  3. Bunseki Kagaku v.20 Y. Yamamoto(at al.)
  4. Bunseki Kagaku v.20 M. Komatsu(et al.)
  5. Advances in Polarograpl Z. P. Zagarski;M. Cyrankowska
  6. Anal. Chem. v.22 K. Hansen;T. P. Parks
  7. Rev. Polarog. v.11 T Fuginaga(et al.)
  8. Bunseki Kagaku v.22 T. Kitagawa;A. Ichimaru
  9. Rev. Polarog. v.12 M. Ishibashi
  10. Ion Exchange and Solvent Extraction Y. Marcus;A. S. Kertes
  11. Aust. J. Sci. Res. v.A4 B. Breyer;F. Gutman;S. Hacobjan
  12. Rev. Polarog. v.10 K. Itsuki;K. Nishino
  13. Rev. Polarog. v.8 J. Seto;S. Yamasaki
  14. JIS K-6161
  15. Colorimetric determination of trace materials E. B. Sendel
  16. Bunseki Kagaku v.22 Y. Yamazaki(et al.)
  17. Bunseki Kagaku v.22 H. Okusu(at al.)