PIXE and XRF elemental analysis of breakfast cereals consumed in Mexico

被引：4
|
作者：
Romero-Davila, E. [1 ]
Miranda, J. [2 ]
de Lucio, O. G. [2 ]
Pineda, J. C. [2 ]
机构：
[1] Eton Sch, Domingo Garcia Ramos S-N, Mexico City 05619, DF, Mexico
[2] Univ Nacl Autonoma Mexico, Inst Fis, AP 20-364, Mexico City 01000, DF, Mexico
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2018年 / 318卷 / 02期
关键词：
Breakfast cereals; Particle induced X-ray emission; X-ray fluorescence; Minerals; Chemical composition; MANGANESE; CHROMIUM;
D O I：
10.1007/s10967-018-6052-5
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Elemental concentrations in breakfast cereals consumed in Mexico were measured using Particle induced X-ray emission with 1.7MeV protons and X-ray fluorescence with a Rh X-ray tube operating at 35kV. The specimens, obtained from packages purchased in markets, were freeze dried, ground and pelletized. Standardization was done with tomato, spinach, peach, and orchid leaves NIST standard reference materials, and analytical accuracy verified with NIST 3233 standard reference material (fortified cereal). The concentrations of nine elements did not agree with values quoted in the packages. Therefore, there may be inaccurate official estimations of Mexican population nutrient intakes.
引用
收藏
页码：887 / 895
页数：9
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