Determination of traces of arsenic(III) by anodic stripping voltammetry in solutions, natural waters and biological material

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

“…Careful electrode conditioning was found to enhance the quality and reproducibility of the arsenic signal both in this work and by other authors [12,21,43].…”

“…Both DP [21,34,43,51] and SW [7,30,52] are used in literature for the determination of As(III). SW permitted to obtain higher signals but it gave rise to a lower repeatability and a greater background signal.…”

“…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].…”

Sequential Injection Anodic Stripping Voltammetry at Tubular Gold Electrodes for Inorganic Arsenic Speciation

“…In the last years the analytical use of mercury has been discouraged due to its toxicity. Different materials have been reported for the determination of arsenic, including platinum (Williams & Johnson, 1992), gold (Forsberg et al, 1975), bismuth (Long & Nagaosa, 2008), carbon substrates (Sun et al, 1997) and boron doped diamond (Ivandini, et al 2006 (Sun et al 1997) or solid gold electrodes (Kopanica & Novotny, 1998) have been extensively used for inorganic arsenic speciation as they allow to determine separately As(III) and total As. The analysis by ASV involves three major steps (Figure 1).…”

Oxime Based Selective Fluorescent Sensor for Arsenate Ion in a Greener Way with Bio-Imaging Application

“…Out of various instrumental methodologies like hydride generative inductively coupled plasma atomic emission spectrometry (HG-ICP-AES), capillary electrophoresis inductively coupled plasma mass spectrometry (CE-ICP-MS), high performance liquid chromatography-inductively coupled plasma mass spectroscopy (HPLC-ICP-MS), [18][19][20][21][22][23][24][25][26][27][28][29] and fluorescence method, the last one is well recognized to be less expensive, non-destructive, easy to operate and ensuring a low detection limit. All these factors make this method very attractive in environmental chemistry, medicine and biology, [30][31][32][33][34] offering a promising approach for fast and simple tracking of As species in real samples.…”