- 作者: --
- 作者服務機構: Erciyes University, Faculty of Art and Science, Department of Chemistry, 38039, Kayseri-Turkey
- 中文摘要: A membrane filtration procedure for the preconcentration and atomic absorption spectrometric determination of Pb(II), Co(II) and Fe(III) ions in natural water samples has been established. Cellulose nitrate membrane filters (0.45 mm and 47 mm diameter) were used in all experiments. The procedure is based on chelate formation of the analyte metals with 1-(2-pyridylazo) 2-naphtol (PAN) and on retention of the chelates on cellulose nitrate membrane filter. The cellulose nitrate membrane and analyte ions were completely dissolved by 500 mL of nitric acid at 85 °C on a hood and then metal determinations were performed by flame atomic absorption spectrometry. The method was applied to natural water samples for the determination of analyte ions with satisfactory results, e.g., recoveries > 95%, RSD¢s < 10%.
- 英文摘要: --
- 中文關鍵字: 1-(2-Pyridylazo) 2-naphtol (PAN); Membrane filtration; Separation; Enrichment; Cellulose nitrate membrane; Natural water samples; FAAS.
- 英文關鍵字: --