Analysis Of Selenium Species Using Cathodic Stripping Voltammetry

Abstract

M respectively when an accumulation potential of 100 mV was applied for 90 seconds. Simultaneous determination of selenite and dimethyl diselenide was also carried out. The effect of selenite on the determination of dimethyl diselenide and vice versa was studied. The influence of metal ions such as lead, copper, cadmium and zinc on the reduction signals for selenite and dimethyl diselenide was also investigated. Key words: Cathodic stripping voltammetry, Se(IV), dimethyldiselenide

Determination of Se(IV) in natural waters by adsorptive stripping voltammetry of 5-nitropiazselenol

“…Some of them used GC equipped with ECD and aromatic ortho-diamine compounds with the H in the aromatic ring substituted by Cl or NO 2 [14]. Electrochemical methods, specially differential pulse cathodic stripping voltammetry (DPCSV) with hanging mercury drop electrode (HMDE) as working electrode, is known as a highly sensitive method for determination of Se(IV) [17,18]. Although there are some reports about the interferences by coexisting substances and formation of intermetalic compounds [19], this method has been used by many authors for determination of Se(IV).…”