Beer-derived nitrogen, phosphorus co-doped carbon quantum dots: Highly selective on–off-on fluorescent probes for the detection of ascorbic acid in fruits
Food Chemistry(2023)
Abstract
•Beer was used as a synthetic precursor of biomass carbon quantum dots.•Based on “on–off–on”, N, P-CQDs can detect Fe3+ and ascorbic acid in fruits.•The N, P-CQDs@Fe3+ system had a sufficient sensitivity and selectivity.•The cytotoxicity of N, P CQDs was low.
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Key words
N,P co-doped carbon quantum dots,Beer,Ascorbic acid,On–off–on probes,Fe3+
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