Determination of arsenic in water with the gold electrode (scTRACE GOLD)
contributed by Metrohm |
Arsenic is ubiquitous in the earth’s crust in low concentrations. However, elevated levels can be found in mineral deposits and ores that were formed due to specific geological conditions (volcanic rock, phosphate and sulfide mineral deposits). Arsenic from such deposits leaches into the groundwater in the form of arsenite (AsO33–) and arsenate (AsO43–), causing its contamination.
In addition to the arsenic originating from natural sources, industry and agriculture contribute to the contamination to a lower extent. The World Health Organization (WHO) recommends a maximum arsenic content in drinking water of 10 μg/L.
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