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Title of Journal: Microchim Acta

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Abbravation: Microchimica Acta

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Springer-Verlag

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DOI

10.1006/abbi.1997.0208

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1436-5073

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The study of preconcentration and separation of va

Authors: Quanmin Li Xiaohong Zhao Kai Jiang Guoguang Liu
Publish Date: 2006/12/14
Volume: 158, Issue: 1-2, Pages: 123-130
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Abstract

The paper describes a novel method for vanadiumV preconcentration using microcrystalline triphenylmethane loaded with crystal violet CV prior to the determination by spectrophotometry The effects of different parameters such as the amounts of crystal violet and triphenylmethane acidity stirring time various salts and metal ions etc on the enrichment yield of VV have been investigated to select the experimental conditions VV can be completely separated from CdII PbII MnII CoII CuII FeIII NiII AlIII ZnII and HgII by controlling acidity Under the optimum conditions VV can be totally adsorbed on the surface of microcrystalline triphenylmethane The possible reaction mechanism of the enrichment of VV is discussed in detail in this paper The detection limit of this proposed method is 0023 µg L−1 with the preconcentration factor of 200 The recovery is in a range of 960–104 The proposed method has been successfully applied to the determination of trace vanadium in various water samples with satisfactory results

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