Published in Scientific Works. Series C. Veterinary Medicine, Vol. LXV, Issue 2
Written by Florina RAICU, Constantin VLAGIOIU, Niculae TUDOR
If in a laboratory elemental analysis (heavy metals) on solutions is being performed, there are a couple of very efficient spectrometric techniques that can be used. Flame and Furnace Atomic Absorption (AA) is one of them. This article aims to highlight the applicability of both techniques (Flame Atomic Absorption Spectroscopy “FAAS” and the other one that is Graphite Furnace Atomic Absorption Spectroscopy “GFAAS”) that are being used in the analysis of animal and non-animal food samples. For obtaining a relevant pieces of information in order to help the analyst, it is useful to make a parallel between the two AA techniques. This parallel is obtained by objectively answering to a series of questions to make sure that the chosen technique is the best from different point of views (type and number of samples, the type of the analyzed element, the time allocated for each analysis etc.) The defining elements include understanding the operating principles of each mentioned technique (FAAS and GFAAS), their strengths and their weaknesses (spectral interferences, background effects, matrix effects).
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