New electrochemical sensor with the renewable silver annular band working electrode: Fabrication and application for determination of selenium(IV) by cathodic stripping voltammetry

Voltammetric and impedimetric determinations of selenium(iv) by an innovative gold-free poly(1-aminoanthraquinone)/multiwall carbon nanotube-modified carbon paste electrode

“…Over the last three decades, a variety of electrodes such as hanging mercury drop electrode (HDME) 17,18 and solid electrodes (gold, 19 platinum, 20 and silver 21 ) have been reported for the quantification of Se in water.…”

Copper Film Modified Glassy Carbon Electrode and Copper Film with Carbon Nanotubes Modified Screen-Printed Electrode for the Cd(II) Determination

“…In the research, anodic stripping voltammetry (ASV) was used, which allows the above-mentioned advantages of film modified solid electrodes to be exploited. Stripping voltammetric analysis methods are widely used in trace analysis of various metals and successfully used to monitor environmental samples [ 12 , 13 , 24 , 25 , 26 , 27 , 28 , 29 ]. Additionally, these techniques have often been used to designate cadmium as heavy metal.…”

New Strategies for the Simple and Sensitive Voltammetric Direct Quantification of Se(IV) in Environmental Waters Employing Bismuth Film Modified Glassy Carbon Electrode and Amberlite Resin

“…The stripping voltammetry method makes possible the direct determination of Se(IV), while Se(VI), as electrochemically inactive, is usually reduced to Se(IV) before analysis. Among voltammetric techniques, cathodic stripping voltammetry (CSV) [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22] and anodic stripping voltammetry (ASV) [23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38] have commonly been used for selenium determination. According to our knowledge, currently, there are only few papers with regard to selenium detection procedures by adsorptive stripping voltammetry (AdSV) [39][40][41][42][43][44] available in the literature.…”

“…Mercury electrodes, such as the hanging mercury drop electrode [4][5][6][7][9][10][11][12][13][14]17,18,22,23], mercury film electrode [8], hanging copper amalgam drop electrode [15], and cyclic renewable mercury film silver-based electrode [16], were widely used for the determination of selenium by cathodic stripping voltammetry. The use of solid electrodes made of Ag [19,20] and Cu [21] was also studied. For the determination of Se(IV) by ASV, the gold macroelectrodes [24][25][26][27][28][29][30], gold microelectrodes [30][31][32], or electrodes modified with gold nanoparticles [33][34][35] as well as electrodes modified with O-Phenylenediamine-Nafion [36] were most frequently used.…”

“…Forasmuch as organic matter is an inseparable part of environmental samples, it seems that there is a reasonable need to develop a procedure making it possible to determine Se(IV) in environmental samples abundant in organics without any interference. Until now, only very few articles dedicated to the electrochemical study of selenium which take into consideration the problem linked to the presence of organic substances in the sample have been found in the literature [11][12][13][14][15]18,20,22,30]. In the above-mentioned works, most researchers propose to remove organics prior to the voltammetric detection of Se either by destruction (ultraviolet irradiation, heating with mineral acids) or by separation of humic substances from Se species using chromatographic methods.…”