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

被引：1
作者：
Santana, Rodolfo M. M. [1 ]
Pereira Junior, Lidio [2 ]
Pereira, Marcos Diogo S. [1 ]
Korn, Mauro [2 ]
机构：
[1] Univ Fed Bahia, Inst Quim, Rua Barao Geremoabo 147, BR-40170115 Salvador, BA, Brazil
[2] Univ Estado Bahia, Dept Ciencias Exatas & Terra1, INCTAA, Rua Silveira Martins 2555, BR-41150000 Salvador, BA, Brazil
来源：
TALANTA OPEN | 2023年 / 7卷
关键词：
Screening analysis; Microwave-assisted digestion; Endpoint indicator; Flavored beverage; SAMPLE PREPARATION; DIGESTION METHODS; TOTAL PHOSPHORUS; OXIDATION; SPECIATION; MANGANESE; ACTIVATION; CHEMISTRY; NITROGEN;
D O I：
10.1016/j.talo.2023.100229
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
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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页数：6
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