Fig. 6From: Use of green fluorescent nano-sensors for the determination of furosemide in biological samples and pharmaceutical preparationsFluorescence emission spectra of the N-CQDs in aqueous solution upon addition of various concentrations of FRS (from top to bottom: 0 µg/mL, 0.1 µg/mL, 0.3 µg/mL, 0.5 µg/mL, 0.7 µg/mL, 1.0 µg/mL)Back to article page