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- Title
Determination of total Sb, Se, Te, and Bi and evaluation of their inorganic species in garlic by hydride-generation–atomic-fluorescence spectrometry.
- Authors
Reyes, M. N. Matos; Cervera, M. L.; De la Guardia, M.
- Abstract
A sensitive and simple analytical method has been developed for determination of Sb(III), Sb(V), Se(IV), Se(VI), Te(IV), Te(VI), and Bi(III) in garlic samples by using hydride-generation–atomic-fluorescence spectrometry (HG–AFS). The method is based on a single extraction of the inorganic species by sonication at room temperature with 1 mol L−1 H2SO4 and washing of the solid phase with 0.1% ( w/ v) EDTA, followed by measurement of the corresponding hydrides generated under two different experimental conditions directly and after a pre-reduction step. The limit of detection of the method was 0.7 ng g−1 for Sb(III), 1.0 ng g−1 for Sb(V), 1.3 ng g−1 for Se(IV), 1.0 ng g−1 for Se(VI), 1.1 ng g−1 for Te(IV), 0.5 ng g−1 for Te(VI), and 0.9 ng g−1 for Bi(III), in all cases expressed in terms of sample dry weight.
- Subjects
ANTIMONY; SELENIUM; TELLURIUM; BISMUTH; GARLIC; FLUORESCENCE spectroscopy; SONICATION; HYDRIDES
- Publication
Analytical & Bioanalytical Chemistry, 2009, Vol 394, Issue 6, p1557
- ISSN
1618-2642
- Publication type
Article
- DOI
10.1007/s00216-009-2713-0