Sorbent materials for separation and preconcentration of gold in environmental and geological samples – A review Review Article

Determination of gold in environmental and geological samples requires very often preconcentration and separation due to the high concentration of interfering matrix components and the low content of this metal. Solid phase extraction technique with different kind of solid sorbents offers for this purpose high enrichment factor, rapid phase separation and the ability of combination with different detection techniques. It can be easily implemented and controlled in flow systems, The recent developments in this area are presented and discussed.