Inductively Coupled Plasma Optical Emission Spectroscopy Determination of Trace Element Composition of Argan Oil

A methodology based on inductively coupled plasma optical emission spectroscopy (ICP-OES) after microwave assisted acid digestion has been developed to determine the trace element content of Moroccan argan oil. Limit of detection values equal or lower than few mg/kg were obtained for all elements un...

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Bibliographic Details
Published in:Food science and technology international 2010-02, Vol.16 (1), p.65-71
Main Authors: Gonzálvez, A, Ghanjaoui, M.E, El Rhazi, M, de la Guardia, M
Format: Article
Language:English
Subjects:
Biological and medical sciences
Calcium - analysis
Fat industries
Food Analysis - methods
Food industries
Fundamental and applied biological sciences. Psychology
Limit of Detection
Morocco
Plant Oils - chemistry
Potassium - analysis
Reproducibility of Results
Sodium - analysis
Spectrophotometry, Atomic
Trace Elements - analysis
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Summary:A methodology based on inductively coupled plasma optical emission spectroscopy (ICP-OES) after microwave assisted acid digestion has been developed to determine the trace element content of Moroccan argan oil. Limit of detection values equal or lower than few mg/kg were obtained for all elements under study. To assure the accuracy of the whole procedure, recovery studies were carried out on argan oil samples spiked at different concentration levels from 10 to 200 μg/L. Quantitative average recovery values were obtained for all elements evaluated, demonstrating the suitability of this methodology for the determination of trace elements in argan oil samples. Aluminum, calcium, chromium, iron, potassium, lithium, magnesium, sodium, vanadium and zinc were quantitatively determined in Moroccan argan oils being found that their concentration is different of that found in other edible oils thus offering a way for authentication and for the evaluation of possible adulterations.
ISSN:1082-0132
1532-1738
DOI:10.1177/1082013209353343