Fig. 3From: Nitrogen and sulfur-doped carbon quantum dots as fluorescent nanoprobes for spectrofluorimetric determination of olanzapine and diazepam in biological fluids and dosage forms: application to content uniformity testingA HRTEM images of NS@CQDs (a) 50Â nm, (b) 100Â nm, (c) 200Â nm, B FT-IR spectrum of NS@CQDsBack to article page