Evaluation of sample treatment in micro-scale for the determination of K, Mg, Na and Zn in meat by atomic spectrometry techniques

Quimica nova

Vieira, Mariana Antunes¹  Pereira, Camila Corrêa¹  Ribeiro, Anderson Schwingel¹  Nunes, Adriane Medeiros¹  Oliz, Camila Mizette¹ 

[1] Universidade Federal de Pelotas, Capão do Leão, Brasil

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

DOI  :  10.1590/S0100-40422013000700009

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

This paper describesthe development of methods in micro-scale for the determination of K, Mg, Naand 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, respectivelywhereas LOD for Mg and Zn by microsolubilization with TMAH were 2.40 and 18.4µg g-1, respectively. The RSD values were lower than 6.0% andthe CRMs analyzed showed values with 95% agreement. The proposed methods aresimple, fast and use small amounts of sample (around 10 mg) yet do not requirespecial equipment for sample preparation.

【 授权许可】

CC BY