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- W3133923162 abstract "A high-efficiency spectrophotometric method based on nitrogen-doped fluorescent carbon dots (N-FCDs) was developed for the ultrasensitive determination of carmine (CRM) in foodstuffs. The N-FCDs were fabricated via a one-pot hydrothermal method with m-phenylenediamine as the starting material. The detection principle was based on the fluorescence quenching effect of N-FCDs by CRM, where their interaction was due to the inner filter effect (IFE) and static quenching. A good linear relationship was established for CRM detection in a concentration range of 0.1–10.0 μM with a detection limit as low as 11.2 nM. The proposed method achieved satisfactory results for CRM determination in commercial food products with recoveries better than 98.6% and relative standard deviations (RSDs) less than 4.07%. The method established in this study was simple, ultrasensitive and reliable for rapid detecting CRM in a food matrix, which could be potentially used as a useful sensing agent for the analysis of additive food colourants." @default.
- W3133923162 created "2021-03-15" @default.
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- W3133923162 date "2021-03-08" @default.
- W3133923162 modified "2023-10-16" @default.
- W3133923162 title "Development of an ultrasensitive spectrophotometric method for carmine determination based on fluorescent carbon dots" @default.
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- W3133923162 doi "https://doi.org/10.1080/19440049.2021.1889045" @default.
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