Catalytic Cathodic Stripping Voltammetry of 5-Phenyl-1,3,4-oxadiazole-2-thiol in the Presence of Nickel(II) and Cobalt(II) Ions

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Title:Catalytic Cathodic Stripping Voltammetry of 5-Phenyl-1,3,4-oxadiazole-2-thiol in the Presence of Nickel(II) and Cobalt(II) Ions
Creators:
Skrzypek, Sławomira
Michałek, Agata
Ciesielski, Witold
Kasprzak, Michał
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 69, 8, pp. 1600-1609
Uncontrolled Keywords:Thiols, Nickel(II), Electrochemistry, Electrocatalysis, Cathodic stripping voltammetry, 5-Phenyl-1,3,4-oxadiazole-2-thiol, Cobalt(II)

Abstract

5-Phenyl-1,3,4-oxadiazole-2-thiol (POT) and the systems Ni(II)-POT-acetate buffer, Co(II)-POT-acetate buffer were investigated by differential-pulse cathodic stripping voltammetry (DPCSV). The results of the voltammetric measurements show that POT gives a DPCSV signal at about -0.2 V vs Ag|AgCl. The presence of both POT and nickel(II) ions gives rise to a new peak at about -0.6 V; in the presence of cobalt(II) ions a new peak appears at -1.1 V. Based on published results obtained for other sulfur compounds in the presence of Ni(II) or Co(II) ions, the peak at -0.6 V is ascribed to catalytic reduction of Ni(II), and the peak at -1.1 V to hydrogen catalytic discharge. Optimum conditions have been found for the determination of POT by DPCSV. A linear dependence has been found only for the catalytic Ni(II) peak in the region 10<sup>-8</sup>-10<sup>-7</sup> M POT. The calculated limit of detection and limit of quantification are 3.4 × 10<sup>-9</sup> and 1.1 × 10<sup>-8</sup> mol l<sup>-1</sup>, respectively. <p>

Title:Catalytic Cathodic Stripping Voltammetry of 5-Phenyl-1,3,4-oxadiazole-2-thiol in the Presence of Nickel(II) and Cobalt(II) Ions
Creators:
Skrzypek, Sławomira
Michałek, Agata
Ciesielski, Witold
Kasprzak, Michał
Uncontrolled Keywords:Thiols, Nickel(II), Electrochemistry, Electrocatalysis, Cathodic stripping voltammetry, 5-Phenyl-1,3,4-oxadiazole-2-thiol, Cobalt(II)
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:69
Number:8
Page Range:pp. 1600-1609
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc20041600UNSPECIFIED
ID Code:2297
Item Type:Article
Deposited On:06 Feb 2009 17:17
Last Modified:06 Feb 2009 16:17

Citation

Skrzypek, Sławomira; Michałek, Agata; Ciesielski, Witold; Kasprzak, Michał (2004) Catalytic Cathodic Stripping Voltammetry of 5-Phenyl-1,3,4-oxadiazole-2-thiol in the Presence of Nickel(II) and Cobalt(II) Ions. Collection of Czechoslovak Chemical Communications, 69 (8). pp. 1600-1609. ISSN 0010-0765

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