Abstract
The major challenge in mineral analysis is to accurately measure these elements in a food matrix that contains much higher concentrations of other components (i.e., carbohydrates, proteins, and fats) as well as other mineral elements that may interfere. In comparison with traditional wet chemistry methods for mineral analysis, atomic absorption spectroscopy (AAS), atomic emission spectroscopy (AES), and inductively coupled plasma-mass spectrometry (ICP-MS) methods are capable of measuring trace concentrations of elements in complex matrices rapidly and with excellent precision. While AAS quantifies the absorption of electromagnetic radiation by well-separated neutral atoms, AES measures emission of radiation from atoms in excited states. Developed more recently, ICP has been mated with MS to form ICP-MS instruments that are capable of measuring mineral elements with extremely low detection limits. This chapter covers the preparation of samples for analysis by these methods; the difference in the principles and instrumentation between AAS, AES, and ICP-MS; and the comparative advantages and disadvantages of the methods.
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Yeung, V., Miller, D.D., Rutzke, M.A. (2017). Atomic Absorption Spectroscopy, Atomic Emission Spectroscopy, and Inductively Coupled Plasma-Mass Spectrometry. In: Nielsen, S.S. (eds) Food Analysis. Food Science Text Series. Springer, Cham. https://doi.org/10.1007/978-3-319-45776-5_9
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