Version 1
: Received: 17 December 2018 / Approved: 18 December 2018 / Online: 18 December 2018 (10:31:51 CET)
Version 2
: Received: 21 January 2019 / Approved: 22 January 2019 / Online: 22 January 2019 (17:54:09 CET)
How to cite:
Orecchio, S.; Amorello, D. Platinum and Rhodium in Potatoes Samples by Using Voltammetric Techniques. Preprints2018, 2018120216. https://doi.org/10.20944/preprints201812.0216.v1
Orecchio, S.; Amorello, D. Platinum and Rhodium in Potatoes Samples by Using Voltammetric Techniques. Preprints 2018, 2018120216. https://doi.org/10.20944/preprints201812.0216.v1
Orecchio, S.; Amorello, D. Platinum and Rhodium in Potatoes Samples by Using Voltammetric Techniques. Preprints2018, 2018120216. https://doi.org/10.20944/preprints201812.0216.v1
APA Style
Orecchio, S., & Amorello, D. (2018). Platinum and Rhodium in Potatoes Samples by Using Voltammetric Techniques. Preprints. https://doi.org/10.20944/preprints201812.0216.v1
Chicago/Turabian Style
Orecchio, S. and Diana Amorello. 2018 "Platinum and Rhodium in Potatoes Samples by Using Voltammetric Techniques" Preprints. https://doi.org/10.20944/preprints201812.0216.v1
Abstract
Potato is a starchy, tuberous crop from the perennial Solanum tuberosum having high nutritional values. This paper is the first analytical approach to quantify Pt and Rh in vegetal food. In this study a total of 38 different potatoes samples produced in Europe and one in Australia were investigated. Determinations of Pt and Rh in potatoes samples were carried out by Differential Pulse Voltammetry (DPV/a) for platinum and by Adsorptive Stripping Voltammetry (AdSV) for Rh using standard addition procedure. Because no certified reference potatoes containing platinum and rhodium are available, we used addition standard method. The quantification limits for Pt and Rh are 0.007 and 0.0008 μg Kg−1 respectively. Considering all the potatoes samples, concentrations of Pt and Rh vary in the ranges from 0.007 to 109 μg Kg−1 (sample n° 6 potatoes grown in Sicily) and from 0.0008 to 0.030 μg Kg−1 (sample n°23 of potatoes grown in Emilia Romagna) respectively. For both metals, in many cases the concentrations fall near the quantification limit. In all the samples, platinum is always more abundant than rhodium and their ratio meanly is 14500, which is much greater than that of the earth's crust (about 100).
Keywords
Potatoes, Platinum, Rhodium, Voltammetry
Subject
Chemistry and Materials Science, Analytical Chemistry
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
