Catalytic Adsorptive Stripping Chronopotentiometry of Co(II)‐DMG‐Bromate System at an In Situ Plated Lead Film Electrode. Issue 10 (25th September 2013)

• Record Type: Journal Article
• Authors: Bobrowski, Andrzej; Królicka, Agnieszka; Putek, Maria; Zarębski, Jerzy; Antonatos, Nikolas; Economou, Anastasios
• Is Part Of: Electroanalysis. Volume 25:Issue 10(2013:Oct.)
• Page Start: 2298
• Page End: 2304
• Publication Date: 2013-09-25
• Subjects: Electrochemical analysis -- Periodicals; Chemistry, Analytical -- Periodicals; Electrochemistry -- Periodicals; 543.4
• DOI: 10.1002/elan.201300334
• Languages: English
• ISSNs: 1040-0397

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>A novel catalytic adsorptive stripping chronopotentiometric (CC‐CAdSCP) procedure for the determination of Co(II) traces was developed using a lead film electrode (PbFE). The PbFE was generated in situ on a glassy carbon support from a 0.1 M ammonia buffer containing 1×10⁻⁵ M Pb(II), 6.5×10⁻⁵ M DMG and the target metals. An addition of 0.2 M NaBrO₃ to the solution yielded an 11‐fold catalytic enhancement of chronopotentiometric response of the Co(II)‐DMG complex. The CC‐CAdSCP curves were well‐developed, sharp and reproducible (<italic>RSD</italic> 5.0 % for 5×10⁻⁹ M Co(II)). The limit of detection for Co(II) for 210 s of accumulation time was 4×10⁻¹⁰ M (0.024 µg L⁻¹). In addition, the elaborated method allowed the simultaneous quantification of Co(II) and Ni(II) simultaneously.</p> </abstract>