Selective Preconcentration of Gold from Ore Samples

Table 2

Analytical figures of merit.

Initial concentration of	Regression	R^2			%
			(μg mL^−1)	(μg mL^−1)
0.15 μg mL^−1	A = 0.0125C + 0.0003	0.9998	0.025	0.085	7.56	6.7

volume = 100 mL, (absorbance) = slope x C(concentration μg mL⁻¹) + intercept, of detection (2.5 μg g⁻¹ ore), of quantitation (8.5 μg g⁻¹ ore), relative standard deviation, and factor.