Microwave-Assisted Solid Sampling Analysis Coupled to Flame Furnace Atomic Absorption Spectrometry for Cd and Pb Determination in Food-Contact Polymers
| Autor: | Alessandra Schneider Henn, Angelica Chaiani Frohlich, Matheus Felipe Pedrotti, Vitoria Hagemann Cauduro, Marcos Leandro Silva Oliveira, Erico Marlon de Moraes Flores, Cezar Augusto Bizzi |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Environmental effects of industries and plants
Renewable Energy Sustainability and the Environment solid sampling Geography Planning and Development TJ807-830 Polymer analysis Management Monitoring Policy and Law TD194-195 Solid sampling polymer analysis Renewable energy sources Environmental sciences Toxic element determination MW-SS-FF-AAS toxic element determination GE1-350 microwave-induced combustion Microwave-induced combustion |
| Zdroj: | Sustainability; Volume 14; Issue 1; Pages: 291 REDICUC-Repositorio CUC Corporación Universidad de la Costa instacron:Corporación Universidad de la Costa Sustainability, Vol 14, Iss 291, p 291 (2022) |
| ISSN: | 2071-1050 |
| DOI: | 10.3390/su14010291 |
| Popis: | Microwave-assisted solid sampling analysis coupled to flame furnace atomic absorption spectrometry (MW-SS-FF-AAS) was used for Cd and Pb determination in food-contact polymer samples, with the aim of minimizing reagents and laboratory waste. Operational parameters, such as the FF tube design, the oxygen flow rate, the flame stoichiometry, the sample mass, among others, were evaluated and optimized. Calibration was performed using only reference solutions, and the limits of quantification were 1.7 and 4.6 µg g−1 for Cd and Pb, respectively. Accuracy was assessed by the analysis of certified reference materials (CRMs), and by comparison with the results obtained by inductively coupled plasma mass spectrometry after microwave-assisted wet digestion. The MW-SS-FF-AAS results for the CRMs showed no statistical difference with the certified values, and good agreement was observed with the results of the digestion method. The MW-SS-FF-AAS method was considered suitable for Cd and Pb determination in food-contact polymers. The concentrations of Cd and Pb in the analyzed samples varied from |
| Databáze: | OpenAIRE |
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