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

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 (65%) took place Teflon autoclaves. limits detection (LODs) quantification (LOQs) ranged between 0.01 (Mg)–2.52 (Cu) ?g g?1 0.02 (Mg)–8.40 g?1, respectively. Good method linearity (r2 > 0.9990) observed for each at the selected lines. metals were quantified one-way analysis variance (ANOVA) used to examine whether or not there any statistically significant differences among metal concentrations inside different nut species.