Mineral Analysis of Whole Grain Total Cereal

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Abstract

This article describes the quantitative analysis of the elements iron, zinc, and calcium in Whole Grain Total Cereal, a cereal product that claims to contain 100% of the daily value of several vitamins and minerals. This experiment can be implemented at several instructional levels including chemistry courses for science and nonscience majors, and in more advanced chemistry courses such as quantitative or instrumental analysis. The elemental iron added as a supplement to the cereal is extracted using a magnetic stirrer bar and stirrer plate and quantified using complex formation and visible spectroscopy. The quantities of zinc, calcium, and the naturally occurring iron present in the wheat grain, are determined by atomic absorption spectroscopy having first rendered the sample to an acid-soluble ash.

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