A Simple, Fast, and Inexpensive Simultaneous Determination of Trace Bismuth(III) and Lead(II) in Water Samples by Adsorptive Stripping Voltammetry. (28th August 2017)

• Record Type: Journal Article
• Authors: Grabarczyk, Malgorzata; Adamczyk, Marzena
• Other Names: Uslu Bengi Academic Editor.
• Is Part Of: Journal of analytical methods in chemistry. Volume 2017(2017)
• Publication Date: 2017-08-28
• Subjects: Chemistry, Analytic -- Periodicals; Chemistry, Analytic -- Technique -- Periodicals; 543.05
• DOI: 10.1155/2017/1486497
• Languages: English
• ISSNs: 2090-8865

Abstract

Abstract : A simple, fast, and inexpensive voltammetric method for the simultaneous determination of trace bismuth(III) and lead(II) using (Hg(Ag)FE) as a working electrode was optimized. For adsorptive stripping voltammetric determination of Bi(III) and Pb(II) in a single scan, the cupferron was applied as a complexing agent. Experimental conditions under which these elements can be simultaneously detected include 0.1 mol L −1 acetate buffer (pH = 4.6), 1 × 10 −4 mol L −1 cupferron, accumulation potential −0.05 V, and accumulation time 30 s. The experiments were performed without deaeration of the solutions. The calibration graph was linear from 2 × 10 −9 mol L −1 to 1 × 10 −7 mol L −1 for the simultaneous presence of bismuth and lead. The detection limits for preconcentration time of 30 s were 6.7 × 10 −10 mol L −1 and 8.8 × 10 −10 mol L −1 for bismuth and lead, respectively. The application of this procedure was tested by analyzing certified reference material (SPS-WW1 Wastewater) and Lake Zemborzyce water (eastern areas of Poland).