Avaliação da mineralização de arroz em sistema de refluxo para a determinação de Cu, Fe, Mn e Zn por FAAS
| Autor: | Aline Colvara de Almeida Pinheiro, Meibel Teixeira Lisboa, Anderson Schwingel Ribeiro, Adriane Medeiros Nunes, Alzira Yamasaki |
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| Jazyk: | English<br />Spanish; Castilian<br />Portuguese |
| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Química Nova, Vol 37, Iss 1, Pp 6-9 (2014) |
| Druh dokumentu: | article |
| ISSN: | 1678-7064 0100-4042 |
| DOI: | 10.1590/S0100-40422014000100002 |
| Popis: | This paper describes the evaluation of a new method of sample preparation using a cold finger system with continuous water flow for rice analysis by flame atomic absorption spectrometry. The limits of detection for Cu, Fe, Mn and Zn for the proposed method were 0.36, 1.84, 2.12 and 0.16 mg kg-1, respectively. The RSDs were lower than 6.0% for all elements and the CRM analyzed showed values with 95% agreement. The proposed method is simple and safe for the proposed objective and does not require the use of mixtures of acid or special equipment for sample preparation. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
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