期刊
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
卷 101, 期 -, 页码 -出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jfca.2021.103978
关键词
Cadmium; Dispersive solid phase extraction (DSPE); Edible oil; Inductively coupled Plasma-optical emission spectrometry (ICP OES); Magnetic nanoparticle (MNP); Stearic acid coated-Fe3O4
A new efficient sample pretreatment method DSPE combined with ICP OES was proposed for the extraction and preconcentration of cadmium from edible oil samples. The recovery results for sunflower oil, olive oil, and hazelnut oil samples were calculated as 92.6-114.9 %, 85.0-104.3 % and 92.1-126.0 %, respectively, demonstrating high accuracy and applicability of the method.
In this study, a new and efficient sample pretreatment method called as dispersive solid phase extraction (DSPE) was proposed for the extraction and preconcentration of cadmium from edible oil samples and combined with inductively coupled plasma-optical emission spectrometry (ICP OES) for analyte determination at trace levels. Stearic acid coated-Fe3O4 magnetic nanoparticle (SA-MNP) was selected as the best adsorbent for the preconcentration of analyte. Under the optimum experimental conditions, analytical performance of DSPE-ICP OES system for the analyte was evaluated in terms of limit of detection (LOD), limit of quantification (LOQ) and dynamic range. LOD/LOQ values for sunflower oil/olive oil and hazelnut oil matrices were determined as 0.14/0.46 mu g/kg and 0.38/1.28 mu g/kg, respectively. In order to test the accuracy and applicability of DSPE-ICP OES method, recovery studies were performed in edible oils (sunflower oil, olive oil and hazelnut oil). The recovery results for sunflower oil, olive oil and hazelnut oil samples were calculated as 92.6-114.9 %, 85.0-104.3 % and 92.1-126.0 %, respectively.
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