Technical Data: Quantification of Arsenic in Water Using Gold Wire Electrodes

basic information

Arsenic is present in low concentrations throughout the Earth's crust. However, under special conditions, high-concentration deposits of arsenic can occur (including deposits of volcanic rocks, phosphates, and sulfides). Arsenic leaches from these deposits as arsenite (AsO33-) or arsenate (AsO43-), contaminating groundwater. In addition to natural sources, industrial and agricultural activities contribute to arsenic-related water pollution. The WHO recommends that the concentration of arsenic in drinking water should be below 10 μg/L. This report describes the quantification of arsenic in water samples using anodic stripping voltammetry with the scTRACE Gold sensor. Furthermore, it can distinguish between total arsenic concentration and As(III) concentration. With a deposition time of 60 seconds, the detection limit for total arsenic concentration is 0.9 μg/L, and the detection limit for As(III) concentration is 0.3 μg/L.

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Applications/Examples of results

● Water, well water, lake water, river water, industrial wastewater, waste liquid, seawater, ● Food, drinking water, raw materials, pharmaceuticals

Detailed information

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  Arsenic measurement dedicated electrode. A gold wire electrode that does not use mercury. A maintenance-free electrode that does not require replenishment of internal liquid.

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  797VA Computrace Automates dilution and sample dispensing by connecting to an electric burette.