Infant formulas are a popular supplement or substitute for breast milk. Produced from cow milk on an industrial scale, the formulas are divided into two basic types: products for newborns and for children older than 4 or 6 months. Minerals are indispensable in human nutrition, and their content in the body depends on their occurrence in soil, drinking water, and nutrition. For these reasons, it is important to determine the quality and contents of food products for children, including formulas, in terms of the daily doses of macro- and micro-minerals. Standard Reference Material (SRM) 1849a was purchased from National Institute of Standards & Technology in USA. Infant Formulas were obtained KRISS in Korea. The sample was prepared with different cooking methods and then it was digested with 8 mL of HNO3 and 2 mL of H2O2 using the microwave. This solution was cooled and diluted with deionized water. Diluted solution was injected into the inductively the coupled plasma optical emission spectrometry (ICP-OES) and the inductively coupled plasma mass spectrometer (ICP-MS) to determine minerals (Na, Ca, K, P, Ng, Fe, Zn, Cu, Mn, Cr, Se, Mo, I and Cl). This method provided good correlation (r&gt;0.999), limit of detection (&lt;0.10 mg/kg) and accuracy (&lt;7.76 %) within the test ranges. The mean of concentration values of minerals were 1440.28±16.31, 5457.86±37.61, 6053.85±60.36, 3226.96±15.14, 554.81±4.65, 53.06±0.49, 39.52±0.34, 3.21±0.02, 0.72±0.02, 0.07±0.00, 0.12±0.01, 0.12±0.04, 1.41±0.04, and 3667.84±146.42 mg/kg for Na, Ca, K, P, Ng, Fe, Zn, Cu, Mn, Cr, Se, Mo, I and Cl, respectively.

Contents of macro- and micro-minerals in infant formulas by ICP-OES and ICP-MS

254th National Meeting (2017)

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