VOLTAMMETRIC DETERMINATION OF MERCURY USING A PENCIL GRAPHITE ELECTRODE


Capan T., Arslan H.

12th International Symposium on Pharmaceutical Sciences (ISOPS 12), Ankara, Türkiye, 26 - 29 Haziran 2018, ss.273, (Özet Bildiri)

  • Yayın Türü: Bildiri / Özet Bildiri
  • Basıldığı Şehir: Ankara
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.273
  • Gazi Üniversitesi Adresli: Evet

Özet

When studying the best working conditions for the determination of Hg2+, it was seen that the best working electrode was the pencil graphite electrode, the best supporting electrolyte was pH  7.0 phosphate buffer, and the working potential range was -1.20 to +0.60 V. In those conditions, it was observed of Hg2+ had a very low cathodic peak at -0,097 V and a well observed oxidation peak at +0,223 V in the cyclic voltammetry and square wave voltamograms. Hg2+ was determined using a +0,223 V anodic peak. It was observed that the detection limit of the work was 1.961×10-7 M and the limit of the quantity was 5.882×10-7 M.