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SPME for on-line volatile organic selenium speciation

Citation

Dietz, C and Perez, T and Madrid, Y and Camara, C, SPME for on-line volatile organic selenium speciation, Journal of Analytical Atomic Spectrometry, 18 pp. 467-473. ISSN 0267-9477 (2003) [Refereed Article]

Copyright Statement

Copyright 2003 The Royal Society of Chemistry

DOI: doi:10.1039/b211460g

Abstract

A method for speciation of volatile organo-selenium compounds is presented, using solid phase microextraction (SPME), thermal desorption by an in-house developed desorption unit and detection by different detectors such as AAS and ICP-MS. The procedure is simple, efficient, fast and solvent free. Dimethylselenium and dimethyldiselenium could be separated and quantified in less than two minutes, achieving detection limits of 0.7 and 0.9 mg L21, respectively, when ICP-MS detection was used. No additional chromatographic system for the species separation was needed. A broad range of fiber coatings were compared, finding that commonly used stationary phases such as PDMS show a highly reduced affinity for the investigated species. The method was applied to quantification of organo-selenium content in garlic samples.

Item Details

Item Type:Refereed Article
Keywords:solid phase microextraction, ICP-MS, selenium speciation
Research Division:Chemical Sciences
Research Group:Analytical Chemistry
Research Field:Instrumental Methods (excl. Immunological and Bioassay Methods)
Objective Division:Environment
Objective Group:Flora, Fauna and Biodiversity
Objective Field:Fresh, Ground and Surface Water Flora, Fauna and Biodiversity
Author:Dietz, C (Dr Christian Dietz)
ID Code:84821
Year Published:2003
Web of Science® Times Cited:20
Deposited By:Central Science Laboratory
Deposited On:2013-06-03
Last Modified:2017-06-06
Downloads:0

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