Total polyphenol content and metals determination in Spanish virgin olive oils by means of a dispersive liquid-liquid aerosol phase extraction method and ICP-MS

Abstract

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Trace Elements Analysis of Tunisian and European Extra Virgin Olive Oils by ICP-MS and Chemometrics for Geographical Discrimination

“…Indeed, the concentrations of As recorded varied between 0.05 µg kg −1 and 0.16 µg kg −1 in European oils and were between 0.06 µg kg −1 and 0.88 µg kg −1 in Tunisian oils. These results were mostly in agreement with the concentrations previously reported in Spanish olive oils [ 43 ] and were notably lower compared to other studies conducted on oils from Tunisia and Italy [ 26 , 28 ].…”

“…Copper : Concentrations of Cu varied between 3.62 µg kg −1 and 23.5 µg kg −1 in the Tunisian oil and were significantly greater than the values reported in the literature [ 38 ]. In the European oils, the concentrations of Cu ranged between 0.04 µg kg −1 and 0.17 µg kg −1 and were significantly low compared to the previous findings in Italy, Spain, and Turkey [ 15 , 18 , 21 , 43 , 50 , 55 ]. The presence of Cu in the soils is necessarily related to the natural geogenic background levels but could be altered by different cultivation processes and, therefore, could be found at a wide range of concentrations.…”

“… * The literature data was collected from the previously reported results [ 10 , 15 , 16 , 18 , 26 , 27 , 28 , 30 , 31 , 33 , 38 , 43 , 44 , 48 , 49 , 50 , 51 ]. …”

Aerosol dilution for the introduction of complex matrix samples in plasma-based spectrometry techniques: a tutorial review

“…Several papers reported the use of AD for food analysis (Table 1). Among the types of food analyzed using this sample introduction tool are soy products, cacao and its derivatives, hazelnuts; 35 shark tissues; 4 honey, and propolis; 36 olive oils; 37 tea infusions; 38 meat; 39 and sugar glass and coffee cream. 40 Commonly, the food samples were previously submitted to acid decomposition or extraction methods before the elemental determination, with exception of the samples of tea infusions.…”

Determination of metals in Pork Lard: A rapid and low cost sample preparation by RP-DLLME

“…Different sample preparation procedures employing microwave radiation, wet and dry digestion, and extraction protocols have been reported for this purpose (Carneiro et al 2020, Mirón et al 2020). However, these procedures and protocols are laborious, prone to contamination and loss of analytes (Godoy-Caballero et al 2013).…”