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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Analytical procedure based on slurry sampling for determining selenium in organic vegetable samples by graphite furnace atomic absorption spectrometry

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Author(s):
de Moraes, Paula Martin [1] ; Milantonio, Rafael Brunner [1] ; Cagnani, Gustavo Salustiano [1] ; dos Santos, Felipe Andre [2] ; Federici Padilha, Cilene do Carmo [3] ; de Lima, Paula Monteiro [2] ; Padilha, Pedro de Magalhaes [4, 1]
Total Authors: 7
Affiliation:
[1] UNESP, Dept Quim & Bioquim, Inst Biociencias, BR-18618000 Botucatu, SP - Brazil
[2] UNESP, Dept Melhoramento & Nutr Anim, Fac Med Vet & Zootecnia, Programa Posgrad Zootecnia, BR-18618000 Botucatu, SP - Brazil
[3] UNESP, Dept Fis & Biofis, Inst Biociencias, BR-18618000 Botucatu, SP - Brazil
[4] Univ Estadual Campinas, Inst Nacl Ciencia & Tecnol Bioanalit, BR-13083970 Campinas, SP - Brazil
Total Affiliations: 4
Document type: Journal article
Source: EUROPEAN FOOD RESEARCH AND TECHNOLOGY; v. 229, n. 3, p. 409-414, JUL 2009.
Web of Science Citations: 1
Abstract

This paper presents a simple, fast and sensitive method to determine selenium in vegetable samples by graphite furnace atomic absorption spectrometry through the direct introduction of slurries of the samples into the spectrometer's graphite tube. The limits of detection and quantification calculated for 20 readings of the blank of the standard slurries (5 mg mL(-1) of microcrystalline cellulose) were 0.33 and 1.10 mu g L(-1). The proposed method was applied to determine selenium in samples of organically grown vegetables and its results proved compatible with those obtained from samples mineralized by acid digestion in a microwave oven. (AU)