DIRECT DETERMINATION OF Ca, Mg, Mn AND Zn IN BUFFALO MILK OF THE MARAJO ISLAND BY FAAS.

被引：11

作者：

Pereira Junior, Joao B. ^{[1
]}

Fernandes, Kelly G. ^{[1
]}

Mueller, Regina C. S. ^{[1
]}

Nobrega, Joaquim A. ^{[2
]}

Palheta, Dulcideia C. ^{[3
]}

机构：

[1] Fed Univ Para, Inst Ciencias Exatas & Nat, Fac Quim, BR-66075110 Belem, Para, Brazil

[2] Univ Fed Sao Carlos, Dept Quim, BR-13565905 Sao Carlos, SP, Brazil

[3] Univ Fed Rural Amazonia, Inst Saude & Prod Anim, BR-66077530 Belem, Para, Brazil

来源：

QUIMICA NOVA | 2009年 / 32卷 / 09期

关键词：

buffalo milk; water-soluble tertiary amines; metals; MASS-SPECTROMETRY; POWDER;

D O I：

10.1590/S0100-40422009000900018

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

DIRECT DETERMINATION OF Ca, Mg, Mn AND Zn IN BUFFALO MILK OF THE MARAJO ISLAND BY FAAS. This work proposes an analytical procedure for direct determination of calcium, magnesium, manganese and zinc in buffalo milk by flame atomic absorption spectrometry (FAAS). Samples were diluted with a solution containing 10% (v/v) of water-soluble tertiary amines (CFA-C) at pH 8. For comparison, buffalo milk samples were digested with HNO(3) and H(2)O(2). According to a paired t-test, the results obtained in the determination of Ca, Mg, Mn and Zn in digested samples and in 10% (v/v) CFA-C medium were in agreement at a 95% confidence level. The developed procedure is simple, rapid, decrease the possibility of contamination and can be applied for the routine determination of Ca, Mg, Mn and Zn in buffalo milk samples without any difficulty caused by matrix constituents. such as fat content, and particle size distribution in the milk emulsion.

引用

页码：2333 / 2335

页数：3

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