Editor-in-Chief İlkay Küçükgüzel Associate Editor Aslı Türe Online ISSN 2630-6344 Publisher Marmara University Frequency Bimonthly (Six issues / year) Abbreviation J.Res.Pharm. Former Name Marmara Pharmaceutical Journal
Marmara Pharmaceutical Journal 2017 , Vol 21 , Issue 2
Development of Spectrophotometric Determination Method for Au(III) and Ag(I)
Gülbin Erdoğan1,Emre Dölen1,Hilmi İbar2
1Marmara Üniversitesi, Eczacılık Fakültesi, Analitik Kimya Anabilim Dalı, İSTANBUL
2Trakya Üniversitesi, Fen-Edebiyat Fakültesi, Kimya Bölümü, EDİRNE
DOI : 10.12991/marupj.300811 In this research, a potentiometric and spectrophotometric method was developed to determine Ag(I) and Au(III) based on their reaction with m and p-phenylenediamine. As a result reactions between Ag(I) and Au(III) and m- and p-phenylenediamine mixtures was revealed that, there is an oxidation by means of complexation via oxidation, a diazo compound occured from amines and Ag(I) was reducted to elementel form, Au(III) was reducted to Au(I). Also the formation conditions of the reactions of these metals with amines were investigated, the pH range that the reactions took place, time needed for the formation of the reactions and the mol ratios needed for the complete reaction of the metals with amines. Mole ratios were determined as follows: Ag(I) / (m+p)phenylenediamine= 1;
Au(III) / (m+p)phenylenediamine= 1/2
Keywords : Spectrophotometer, potentiometer, m- ve pphenylenediamine, Ag(I) and Au(III)
Marmara University