Analysis and speciation of arsenic by stripping potentiometry: a review

Selective Separation of Tri- and Pentavalent Arsenic in Aqueous Matrix with a Macrocycle-Immobilized Solid-Phase Extraction System

“…In recent years, several researchers have been working for the quantification and speciation analysis of arsenic (Barra et al 2000, Muñoz & Palmero 2005, Terlecka 2005, Kumar & Riyazuddin 2007, Mays & Hussam 2009). For the separation and detection of arsenic species, ion chromatography and high-performance liquid chromatography separation followed by sensitive detection such as inductively coupled plasma mass spectrometry (Lintschinger et al 1998, Bissen & Frimmel 2000, atomic absorption spectrometry with hydride generation interface (Hasegawa et al 1999, Kumar & Riyazuddin Water, Air, & Soil Pollution, 224(5): 1526.…”

Determination of As(III) by anodic stripping voltammetry using a lateral gold electrode: Experimental conditions, electron transfer and monitoring of electrode surface

“…(CE) [13][14][15][16][17][18][19][20]. Such technologies are laboratory-based and time-intensive and can have large costs for instrument purchase and management.…”

“…Available literature suggests that an attractive and less expensive solution to these problems is represented by electrochemical techniques. Electrochemical methods for the determination of As(III) involve anodic stripping voltammetry (ASV), cathodic stripping voltammetry (CSV), adsorptive cathodic stripping voltammetry (AdSV) or potentiometric stripping analysis [20][21][22].…”

“…Many kinds of working electrode materials have been reported for the determination of arsenic, including platinum, gold, carbon substrates, and boron-doped diamond [11,12,20,28].…”

“…In particular, gold was found to be the superior substrate as a working electrode for arsenic determination [20,29,30], because it provides a more sensitive response toward arsenic oxidation than other electrode materials and has a higher hydrogen overvoltage than platinum [31,32]. Problems occurring with solid electrodes include the dependence of their response on pre-treatment and the formation of oxide films, which limits sensitivity and reproducibility and, as a consequence, their use for routine applications [23,33].…”