Screening analysis: An alternative for real-time analysis and greener microwave-assisted persulfate decomposition of flavored beverages

Autor: Rodolfo M.M. Santana, Lidio Pereira Junior, Marcos Diogo S. Pereira, Mauro Korn
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Talanta Open, Vol 7, Iss , Pp 100229- (2023)
Druh dokumentu: article
ISSN: 2666-8319
DOI: 10.1016/j.talo.2023.100229
Popis: The proposed procedure aims to generate information about the decomposition efficiency of organic matter before the instrumental determination of elements and real-time decision-making. In the presence of organic compounds samples, the irradiation time was consistently higher (at least 20 s or more) than that observed for the appearance of MnO4– in organic matter-free solutions (10±1 s, n = 6). Moreover, RCC values ≤14% were determined for all solutions independent of the target compound observed. Total carbon was determined in samples before and after persulfate decomposition, with a 95% reduction in the carbon content, except for grape-flavored waters (RCC = 85%). The microwave-assisted S2O82−/Mn2+ system allowed a fast, clean and effortless approach leading to material, energy, and time-saving method for mineralizing beverages.
Databáze: Directory of Open Access Journals