We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Direct Determination of Zn, Cd, Pb and Cu in Wine by Differential Pulse Anodic Stripping Voltammetry.
- Authors
Maciel, Juliana V.; Souza, Michele M.; Silva, Lisiane O.; Dias, Daiane
- Abstract
Metals in wine can originate from natural and anthropogenic sources and their concentrations have significant effects on wine proprieties as well in its conservation. In this work, direct and simultaneous determinations of Zn, Cd, Pb and Cu in wine samples were carried out by differential pulse anodic stripping voltammetry without any steps of previous pretreatment. The samples analyzed presented concentration levels from 4.64 to 69.3 µg L-1 of Zn, from 1.74 to 5.25 µg L-1 of Cd, from 4.57 to 17.9 µg L-1 of Pb and from 1.0 to 10.3 µg L-1 of Cu. Accuracy was evaluated with the standard addition method and recoveries ranged from 82.5 and 130.8% for Zn, from 85.7 to 107.0% for Cd, from 89.7 to 101.0% for Pb and from 81.4 to 105.9% for Cu. With the application of this method, it was possible to quantify the metals in a simple and easy way not requiring sample preparation or other approaches for the destruction of organic substances.
- Subjects
COMPOSITION of wine; METAL analysis; DIFFERENTIAL pulse code modulation; VOLTAMMETRY; ORGANIC beverages
- Publication
Beverages, 2019, Vol 5, Issue 1, p1
- ISSN
2306-5710
- Publication type
Article
- DOI
10.3390/beverages5010006