Determination of Arsenic species traces from surface and drinking water using Stripping Voltammetry

Abstract

A quick and sensitive determination method was developed for arsenic species traces in surface and drinking water via stripping voltammetry techniques. A hanging mercury drop electrode (HMDE) was used as working electrode. As (III) is determined directly and As (V) is calculated by subtraction between total As and As (III). In order to determine total As, the entire quantity of arsenic is reduced to As (III), which represents the electrochemical active specie. A large number of tests were performed in order to achieve the optimum setup of equipment’s parameters, studies on a large range of interference's were done and at the end the method was in house validated.