Differential pulse anodic stripping voltammetric determination of traces of tin using a glassy carbon electrode modified with bismuth and a film of poly(bromophenol blue)

Abstract

We report on an anodic stripping voltammetric method for the determination of tin using a glassy carbon electrode modified with bismuth and poly(bromophenol blue). After an accumulation time of 60 s at −1.20 V (vs. SCE), the response of the electrode to tin in 1.0 M HCl is linear in the concentration ranges from 20 nM to 1.0 μM, and from 1.0 μM to 20 μM, with a detection limit of 7.0 nM (at an SNR of 3) and with relative standard deviations in the order of 3.0-3.8%. The method was validated by comparing the results with those obtained by AAS and successfully applied to the determination of tin in canned food.

Application of a Solid Bismuth Microelectrode in an Adsorptive Stripping Voltammetric Procedure of Trace Tin Quantification

“…9 All voltammetric procedures of tin determination in which bismuth film electrodes are used are based on anodic striping voltammetry. [10][11][12][13][14][15][16] In turn, mercury electrodes have been used for determination of tin by means of adsorptive stripping voltammetry. [17][18][19][20][21][22][23][24][25] In AdSV method, the following compounds have been used as complexing agents: tropolone, 17,18 catechol, 19,20 chloranilic acid, 21 propyl gallate, 22 phenylfluorone, 23 8-hydroxyquinoline, 24 and DHB.…”

Stripping Voltammetry with Nanomaterials‐based Electrode in the Environmental Analysis of Trace Concentrations of Tin

“…[18][19][20][21][22][23][24] Voltammetry is an electrochemical technique that measures the change in current as a function of the change in electrode potential. Several voltammetric methods can be used for the determination of tin, such as anodic stripping voltammetry (ASV), [18][19][20][21][22][23][24][25][26][27][28] cathodic stripping voltammetry (CSV) [29] and adsorptive stripping voltammetry (AdSV). [30][31][32][33][34][35][36][37][38] In the voltammetric methods, different working electrodes have been used during the experiments performed.…”

“…[30][31][32][33][34][35][36][37][38] In the voltammetric methods, different working electrodes have been used during the experiments performed. The most common working electrodes have been hanging drop mercury electrode, [18][19][20][30][31][32][34][35][36][37] glassy carbon mercury film electrode (GCMFE), [33] carbon paste electrode (CPE), [21] bismuth film electrode (BiFE), [22][23][24][25][26] solid bismuth microelectrode (BiFμE), [38] bismuth/poly (bromophenol blue) modified glassy carbon electrode (Bi/poly(BPB)GCE) [27] and chemically modified electrode (CME). [29] Table 1 shows comparison of voltammetric procedures for the analysis of tin ions.…”

Inner filter effect between upconversion nanoparticles and Fe(ii)–1,10-phenanthroline complex for the detection of Sn(ii) and ascorbic acid (AA)

“…[12][13][14] Therefore, it is particularly important to explore an accurate, simple and effective method to detect Sn(II)/Sn(IV). Conventional analysis methods for detecting Sn(II) is atomic absorption spectrometry, 13,14 spectral method, 15 voltammetry, 16,17 and potential method, 18,19 etc. These methods cannot differentiate between samples of Sn(II) and Sn(IV).…”