Antimony Film Electrode Prepared In Situ in Hydrogen Potassium Tartrate in Anodic Stripping Voltammetric Trace Detection of Cd(II), Pb(II), Zn(II), Tl(I), In(III) and Cu(II)

Abstract

An antimony film electrode (SbFE) was prepared in situ on a glassy carbon support and in a new supporting electrolyte, a saturated solution of hydrogen potassium tartrate in which Sb(III) ions were complexed using tartrate. Its performance in anodic stripping voltammetric (ASV) determination of Cd(II), Pb(II), Zn(II), Tl(I), In(III) and Cu(II) traces was examined. It was found that 1.2 mg/L of Sb(III) yields the finest quality SbFE for analytical purposes. The procedure with in situ SbFE ensures well‐defined anodic stripping voltammetric curves of the investigated elements, low detection limits (0.5–3.8 µg/L), good reproducibility (1–5 %) and satisfactory sensitivity (32–184 nA/(µg/L)).

Determination of Lead(II) Using Screen‐Printed Bismuth‐Antimony Film Electrode

“…This is probably due to the enhanced electron transfer in the detection system, and also due to the added sodium ions or potassium ions which do not compete nor interfere with the depositing and stripping of lead(II) in this potential range according to their standard electrode potential. The saturated solution of hydrogen potassium tartrate (pH 3.6) was reported as a good supporting electrolyte for antimony film electrode 45, however, the SbSPE did not perform as well as BiSPE in this electrolyte. In addition, different from the bismuth‐antimony film modified GC which showed good performance in more acidic solutions 35, the best signal of the Bi‐SbSPE was achieved in the acetate buffer solution which was a more mildly acidic solution.…”

Simultaneous voltammetric determination of trace bismuth(III) and cadmium(II) in water samples by adsorptive stripping voltammetry in the presence of cupferron

“…The complexes of Bi(III)-cupferron and Cd(II)-cupferron were accumulated due to their adsorption on hanging mercury drop electrode (HMDE) used as a working electrode. Nowadays the trend to replace mercury electrodes by another one such as bismuth, lead, antimony or gallium film electrodes is observed [14][15][16][17][18]. It is connected mostly with the toxicity of mercury, which is rather volatile.…”

The voltammetric behaviour of lead at a hand drawn pencil electrode and its trace determination in water by stripping voltammetry

“…Demonstrable improvements in selectivity have been reported using either the in situ or ex situ deposition of metal thins of Bi [50], Hg [51] or Sb [52]. Consequently, it is believed that a similar approach could be employed with these devices.…”