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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.)

Multielemental Determination of As, Bi, Ge, Sb, and Sn in Agricultural Samples Using Hydride Generation Coupled to Microwave-Induced Plasma Optical Emission Spectrometry

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Machado, Raquel C. ; Amaral, Clarice D. B. ; Nobrega, Joaquim A. ; Araujo Nogueira, Ana Rita
Total Authors: 4
Document type: Journal article
Source: Journal of Agricultural and Food Chemistry; v. 65, n. 23, p. 4839-4842, JUN 14 2017.
Web of Science Citations: 7

A microwave-induced plasma optical emission spectrometer with N-2-based plasma was combined with a multimode sample introduction system (MSIS) for hydride generation (HG) and Multielemental determination of As, Bi, Ge, and Sn in samples of forage, bovine liver, powdered milk, agricultural gypsum, rice,,and mineral fertilizer, using a single condition of prereduction and reduction. The accuracy of the developed analytical method was evaluated using certified reference materials of water and mineral fertilizer, and recoveries ranged from 95 to 106%. Addition and recovery experiments were carried out, and the recoveries varied from 85 to 117% for all samples evaluated. The limits of detection for As, Bi, Ge, Sb, and Sn were 0.46, 0:09, 0.19, 0.46, and 5.2 mu g/L, respectively, for liquid samples, and 0.18, 0.04, 0.08, 0.19, and 2.1 mg/kg, respectively, for solid samples. The method proposed offers a simple, fast, multielemental; and robust alternative for successful determination of all five analytes in agricultural samples with low operational cost without compromising analytical performance. (AU)

FAPESP's process: 13/26672-5 - Development of procedures to as, BA, CD, Cr, Pb and Si determination in fertilizer samples by using microwave inductive plasma optical emission spectrometry (MIP OES)
Grantee:Raquel Cardoso Machado
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 15/14488-0 - Analytical method development for quality determination of fertilizers and tanning waste
Grantee:Ana Rita de Araujo Nogueira
Support type: Regular Research Grants