Avaliação de tratamentos da amostra em microescala para a determinação de K, Mg, Na e Zn em carnes por técnicas de espectrometria atômica

Química Nova

Camila Mizette Oliz¹  Camila Corrêa Pereira¹  Mariana Antunes Vieira¹  Anderson Schwingel Ribeiro¹  Adriane Medeiros Nunes¹ 

[1] ,Universidade Federal de Pelotas Centro de Ciências Químicas, Farmacêuticas e de Alimentos Capão do Leão RS ,Brasil

关键词: meat;    sample preparation;    atomic spectrometry techniques;   

DOI  :  10.1590/S0100-40422013000700009

来源: SciELO

【 摘 要 】

This paper describes the development of methods in micro-scale for the determination of K, Mg, Na and Zn in meat by atomic spectrometry techniques. The limits of detection (LOD) for K and Na by microdigestion were 0.18 and 0.20 mg g-1, respectively whereas LOD for Mg and Zn by microsolubilization with TMAH were 2.40 and 18.4 µg g-1, respectively. The RSD values were lower than 6.0% and the CRMs analyzed showed values with 95% agreement. The proposed methods are simple, fast and use small amounts of sample (around 10 mg) yet do not require special equipment for sample preparation.

【 授权许可】

CC BY-NC   
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