Dispersive Solid Phase Extraction of trace Pb(II) in water samples by New Fabricated Multi walled carbon nanotubes carboxylate

International Journal of Bio-Inorganic Hybrid Nanomaterials

مقاله 5، دوره 7، شماره 4، دی 2018، صفحه 305-314   

نوع مقاله: Research Paper

چکیده

A novel, simple, sensitive and effective method has been developed for preconcentration of the trace Pb (II) ions in aqueous Samples by CNT carboxyl which in order to improve the performance of extraction and preconcentration was used. Amounting of the ions density in solution was performed by the method of flame atomic absorption spectrometry. The effective parameters on extraction such as: effect of pH, the amount and eluent solvent, time of extraction and effect of other cation were optimized. Concentrate factor was found 30 and LOD method of limit of detection was found to 0.17µg.L-1. The relative standard deviation is 1.70% (RSD%).

کلیدواژه‌ها

Multi walled carbon nanotubes carboxylate (MWCNTs-COOH)؛ Pb(II)؛ Preconcentration؛ Solid phase extraction