Determination of elemental content in solid sweeteners by slurry sampling and ICP OES

被引：10

作者：

Sousa, Rafael A. ^{[1
]}

Baccan, Nivaldo ^{[1
]}

Cadore, Solange ^{[1
]}

机构：

[1] Univ Estadual Campinas, Inst Chem, BR-13083970 Campinas, SP, Brazil

来源：

FOOD CHEMISTRY | 2011年 / 124卷 / 03期

基金：

巴西圣保罗研究基金会;

关键词：

Elemental content; Solid sweeteners; Slurry sampling; Direct analysis; ICP OES;

D O I：

10.1016/j.foodchem.2010.07.059

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Inorganic species (Ca, Cd, Cu, Co, Fe, Mg, Mn, Na, Ni, Pb, Se and Zn) were determined in solid sweeteners by ICP OES without employing a mineralization step. Robust conditions were used in the ICP equipment and the samples were analyzed as aqueous suspensions. The analysis of different kinds of sweeteners showed different concentration profiles. Some samples presented contamination by Cd but, in general, the samples were found to contain Ca, Fe, Mg, Mn, Na and Se in tolerable amounts. The method accuracy was evaluated and recovery values between 90% and 110% were attained for the recovery experiments, the RSD values were lower than 5% in most cases and the method was shown to be adequate for monitoring inorganic elements in this kind of sample. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：1264 / 1267

页数：4

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