Resumen de Overcoming Matrix Effects in a Complex Sample: Analysis of Multiple Elements in Multivitamins by Atomic Absorption Spectroscopy
Randy J. Arnold, Brett Arndt, Emilia Blaser, Chris Blosser, Dana Caulton, Won Sog Chung, Garrett Fiorenza, Wyatt Heath, Alex Jacobs, Eunice Kahng, Eun Koh, Thao Le, Kyle Mandla, Chelsey McCory, Laura Newman, Amit Pithadia, Anna Reckelhoff, Joseph Rheinhardt, Sonja Skljarevski, Jordyn Stuart, Cassie Taylor, Scott Thomas, Kyle Tse, Rachel Wall, Chad Warkentien
A multivitamin tablet and liquid are analyzed for the elements calcium, magnesium, iron, zinc, copper, and manganese using atomic absorption spectrometry. Linear calibration and standard addition are used for all elements except calcium, allowing for an estimate of the matrix effects encountered for this complex sample. Sample preparation using standard lab chemicals and equipment allows for this experiment to be easily incorporated into undergraduate analytical laboratory courses.
