Determination of thallium and lead in cadmium salts by anodic stripping voltammetry with addition of surfactants to suppress the cadmium peaks

Anodic Stripping Voltammetry of Tin at the Bismuth Film Electrode Using Cetyltrimethylammonium Bromide

“…The presence of surfactants is normally considered a hindrance to ASV determinations because of their interfering effect. The presence of surfactants in the analytical matrix commonly results in peak height suppression, peak broadening or changes in peak potentials with the individual effect dependent on their chemical structure, environment, working electrode, and deposition potential [21,22]. The inherent effect on the signals of a voltammetric determination implies that in some instances the presence of surfactants can be exploited to positively alter the resulting voltammogram.…”

Present and future status of organic analytical reagents - Part III: Organic analytical reagents in electroanalysis (Technical report)

“…are used as surface active agents in d.c. or a.c. polarography and in inverse voltammetry. In the presence of these substances heavy metal ions such as Tl', Pb", Sn", Cd" can be determined in the presence of excess of other metals (125)(126)(127)(128)(129)(130)). …”

Differential pulse polarography and differential pulse anodic stripping voltammetry for determination of trace levels of thallium

“…In addition, for full utility the analytical methods preferably would be adaptable to field use. Electroanalytical methods are obvious choices for speciation studies, and while organothallium compounds have been identified electrochemically, the results are not especially applicable to procedures for routine analyses of low level natural samples (20)(21)(22)(23)(24)(25)(26)(27)(28)(29). The present study was an investigation of the electrochemical analysis procedures appropriate to environmental needs.…”