Flame Atomic Absorption Determination of Gold Ion in Aqueous Samples after Preconcentration Using 9-Acridinylamine Functionalized γ-Alumina Nanoparticles

Table 2

Data of real sample analysis for Au on 9-acridinylamine alumina.

	Real sample (ng mL^−1)	Added (ng mL^−1)	Found (ng mL^−1)	Recovery (%)
Distilled water	ND	5.00	4.95 ± 0.10	99
Tap water	ND	5.00	4.89 ± 0.10	98
Waste water	12.31	40.00	51.81 ± 0.10	99
Sea water	8.00	40.00	45.64 ± 0.10	96
Standard material	260.00	0.00	265.33 ± 2.41	102