Selective speciation and determination of inorganic arsenic in water, food and biological samples.

Mustafa Tuzen, Kadriye Ozlem Saygi, Isa Karaman, Mustafa Soylak

Faculty of Science and Arts, Chemistry Department, Gaziosmanpasa University, 60250 Tokat, Turkey.

Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association 2010 Jan

filter terms:

A procedure for the speciation of arsenic(III) and arsenic(V) in natural water samples has been established in the presented work. Arsenic(III) ions were quantitatively recovered on Alternaria solani coated Diaion HP-2MG resin at pH 7, while the recoveries of arsenic(V) was below 10%. Arsenic(V) in the mixing solution containing As(III) and As(V) was reduced by using KI and L(+) ascorbic acid solution, then the procedure was applied to determination of total arsenic. Arsenic(V) was calculated as the difference between the total arsenic content and As(III) content. The determination of arsenic was performed by using hydride generation atomic absorption spectrometry. The influences of some alkali, earth alkali and transition metals on the biosorption of arsenic(III) were investigated. The preconcentration factor was 35. The detection limits for As(III) (N=20, k=3) was found as 11 ng L(-1). The relative standard deviation and relative error of the determinations were found to be lower than 7% and 4%, respectively. The accuracy of the method was confirmed with certified reference materials. The method was successively applied for the determination and speciation of inorganic arsenic in water, food and biological samples. Copyright 2009 Elsevier Ltd. All rights reserved.

Citation

Mustafa Tuzen, Kadriye Ozlem Saygi, Isa Karaman, Mustafa Soylak. Selective speciation and determination of inorganic arsenic in water, food and biological samples. Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association. 2010 Jan;48(1):41-6