Fast and simultaneous determination of zinc and iron using HR-CS GF-AAS in vegetables and plant material

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Publikace nespadá pod Filozofickou fakultu, ale pod Lékařskou fakultu. Oficiální stránka publikace je na webu muni.cz.
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ZVĚŘINA Ondřej VYCHYTILOVÁ Monika RIEGER Jaqueline GOESSLER Walter

Rok publikování 2023
Druh Článek v odborném periodiku
Časopis / Zdroj Spectrochimica Acta Part B: Atomic Spectroscopy
Fakulta / Pracoviště MU

Lékařská fakulta

Citace
www https://www.sciencedirect.com/science/article/pii/S0584854723000034
Doi http://dx.doi.org/10.1016/j.sab.2023.106616
Klíčová slova High-resolution continuum source graphite furnace atomic absorption spectrometryIron; Zinc; Simultaneous determination
Popis Due to the high nutritional importance of zinc and iron, accurate methods for their determination in foodstuffs are required. Here, we present a routine-ready method for their co-determination by means of high-resolution continuum source graphite-furnace atomic absorption spectrometry. As the technique allows for monitoring a narrow spectral interval, adjacent secondary lines of Zn (307.588 nm) and Fe (307.572 nm) can be measured simultaneously in a single firing. The analysis is therefore fast (under 2 min) and its sensitivity corresponds to common concentrations of the elements in foodstuffs. The accuracy of the method was verified by means of reference materials and also by comparison with an independent technique. Analysis of a large set of vegetable samples proved the applicability of the method in a routine laboratory setting. The vegetables for analysis were obtained from both markets and local gardeners. The results indicate higher contents of zinc and iron in homegrown vegetables compared to store-bought ones.
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