{"title":"Screening analysis: An alternative for real-time analysis and greener microwave-assisted persulfate decomposition of flavored beverages","authors":"Rodolfo M.M. Santana , Lidio Pereira Junior , Marcos Diogo S. Pereira , Mauro Korn","doi":"10.1016/j.talo.2023.100229","DOIUrl":null,"url":null,"abstract":"<div><p>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 MnO<sub>4</sub><sup>–</sup> in organic matter-free solutions (10±1 s, <em>n</em> = 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 S<sub>2</sub>O<sub>8</sub><sup>2−</sup>/Mn<sup>2+</sup> system allowed a fast, clean and effortless approach leading to material, energy, and time-saving method for mineralizing beverages.</p></div>","PeriodicalId":436,"journal":{"name":"Talanta Open","volume":"7 ","pages":"Article 100229"},"PeriodicalIF":4.1000,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Talanta Open","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2666831923000498","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, ANALYTICAL","Score":null,"Total":0}
引用次数: 0
Abstract
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.
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