Graphene quantum dots-based fluorescent probe for turn-on sensing of ascorbic acid

- A novel GQDs-based fluorescent probe has been developed for simple, rapid, and low-cost detection of ascorbic acid in the presence of copper ions.
- This sensing system is fluorescent turn-on model and possesses high sensitivity and selectivity for the detection of ascorbic acid.
- This sensing system is capable of detecting ascorbic acid in real samples with satisfactory results.