Determination of the Toxic and Nutrient Element Content of Almonds, Walnuts, Hazelnuts and Pistachios by ICP-AES

Separations

Natalia Manousi¹  NatasaP. Kalogiouri¹  GeorgeA. Zachariadis¹ 

[1] Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;

关键词: trace elements;    almonds;    pistachios;    hazelnuts;    walnuts;    nuts;   

DOI  :  10.3390/separations8030028

来源: DOAJ

【 摘 要 】

The trace element content of thirty-two nuts including almonds, walnuts, hazelnuts and pistachios available in a Greek market was determined by inductively coupled plasma atomic emission spectrometry (ICP-AES). Wet acid digestion using nitric acid (65%) took place in Teflon autoclaves. The limits of detection (LODs) and limits of quantification (LOQs) ranged between 0.01 (Mg)–2.52 (Cu) μg g⁻¹ and 0.02 (Mg)–8.40 (Cu) μg g⁻¹, respectively. Good method linearity (r² > 0.9990) was observed for each element at the selected emission lines. The metals were quantified and one-way analysis of variance (ANOVA) was used to examine whether or not there were any statistically significant differences among the metal concentrations inside the different nut species.

【 授权许可】

Unknown