Simultaneous determination of Pb and Cd in low-cost jewelry using differential pulse voltammetry
| Autor: | Rafael Arromba de Sousa, Taimara Polidoro Ferreira, Denise Lowinsohn |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Detection limit
Cadmium Chemistry General Chemical Engineering General Engineering Analytical chemistry chemistry.chemical_element 010501 environmental sciences 010402 general chemistry Electrochemistry 01 natural sciences 0104 chemical sciences Analytical Chemistry Recovery rate Standard addition Differential pulse voltammetry 0105 earth and related environmental sciences |
| Zdroj: | Analytical Methods. 8:8028-8032 |
| ISSN: | 1759-9679 1759-9660 |
| DOI: | 10.1039/c6ay02699k |
| Popis: | The simultaneous electrochemical determination of lead (Pb) and cadmium (Cd) in low-cost jewelry was achieved using differential pulse voltammetry (DPV). The presented voltammetric detection via standard addition shows possible simultaneous analyses of Cd and Pb. The detection limit of 1.13 × 10−4% m m−1 for lead and 1 × 10−3% m m−1 for cadmium were obtained. The recovery rate ranged between 99 and 110% for Cd and 99–105% for Pb. Nine different low-cost jewelry pieces were analysed. Some were purchased from local trade while others were confiscated goods from the police force. |
| Databáze: | OpenAIRE |
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