Selective Preconcentration of Gold from Ore Samples

Table 1

Effect of ligand concentration of retention of metal chelates.

Amount of DEBT	Amount of Au^3+ in sample solution (μg)	% Sorption of gold chelates on resin
3mL of 2x10^−3 mol L^−1	15	100 ± 2
3mL of 2x10^−3 mol L^−1	100	100 ± 2
3mL of 2x10^−3 mol L^−1	500	94 ± 3

Amount of resin: 1.0 g, sample volume: 10 mL, and sample flow rate: 0.5 mL min⁻¹.