Liquid-liquid extraction of mercury(II) with triphenylphosphine sulphide: Application to medicinal and environmental samples

A method is proposed for the separation and determination of mercury(II) in environmental samples after its extraction from salicylate solution using triphenylphosphine sulphide (TPPS) as an extractant. The extraction conditions are optimized and reported. The nature of the extracted species is ascertained by a plot of log of distribution ratio versus log of concentration of salicylate and TPPS.