Preconcentration of cobalt using Amberlyst 36 as a solid-phase extractor and its determination in various environmental samples by flame atomic absorption spectrometry

Authors: Kendüzler, Erdal¹; Türker, A. Rehber²

Source: International Journal of Environmental and Analytical Chemistry, Volume 86, Number 11, 15 September 2006 , pp. 843-853(11)

Publisher: Taylor and Francis Ltd

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Abstract:

A new and simple column-solid-phase extraction method has been developed to separate and preconcentrate trace cobalt in water and soil prior to its determination by flame atomic absorption spectrometry (FAAS). Different factors such as pH of sample solution, sample volume, amount of resin, flow rate of aqueous solution, volume and concentration of eluent, and matrix effects for preconcentration were optimized. Under optimized experimentally established conditions, an analytical detection limit of 0.44µgL −1 , precision (RSD) of 1.9%, enrichment factor of 200, and capacity of resin of 82mgg −1 were obtained. The method was applied for cobalt determination by FAAS in tap water, natural drinking water, soil, and roadside dust samples. The accuracy of the method is confirmed by analysing standard reference material (Montana Soil, SRM 2711).

Keywords: Cobalt determination; Water analysis; Soil analysis; Roadside dust analysis; Preconcentration; Amberlyst 36

Document Type: Research article

DOI: http://dx.doi.org/10.1080/03067310600635350

Affiliations: 1: Kırşehir Education Faculty, Gazi University, 40100, Kırşehir, Turkey 2: Faculty of Science and Arts, Gazi University, 06500, Ankara, Turkey

Publication date: 2006-09-15

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