Please use this identifier to cite or link to this item:
https://repositorio.ufba.br/handle/ri/15212
metadata.dc.type: | Artigo de Periódico |
Title: | Determinação de Mn e Zn em arroz empregando espectrometria de fluorescência de raios x de energia dispersiva |
Other Titles: | Química Nova |
Authors: | Teixeira, Alete Paixão Quintella, Cristina Maria Assis Lopes Tavares da Mata Hermida Korn, Maria das Graças Andrade Fernandes, Andréa Pires Castro, Martha Teresa Pantoja de Oliveira |
metadata.dc.creator: | Teixeira, Alete Paixão Quintella, Cristina Maria Assis Lopes Tavares da Mata Hermida Korn, Maria das Graças Andrade Fernandes, Andréa Pires Castro, Martha Teresa Pantoja de Oliveira |
Abstract: | Simple, fast and inexpensive method was developed to determine essential elements in pellets of rice samples using energy dispersive X-ray fluorescence spectrometry (EDXRF). The accuracy and precision were evaluated using Standard Reference Material (rice flour NIST 1568a), and yielding relative standard deviation below 5%. The paired t-test showed good agreement within 95% confidence values. The detection limits (3σ) of Mn and Zn were 5.1 and 2.2 mg kg-1, respectively. The proposed method proved to be effective when used to determine Mn and Zn in commercial samples of rice without go by stage of decomposition. |
Keywords: | Rice Essential elements EDXRF |
metadata.dc.publisher.country: | Brasil |
metadata.dc.rights: | Acesso Aberto |
URI: | http://repositorio.ufba.br/ri/handle/ri/15212 |
Issue Date: | 2012 |
Appears in Collections: | Artigo Publicado em Periódico (Química) |
Files in This Item:
File | Description | Size | Format | |
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Alete Paixão Teixeira.pdf | 265,36 kB | Adobe PDF | View/Open |
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