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. 2019 Apr 16;9(21):12070–12077. doi: 10.1039/c9ra02120e

Fig. 6. (a). Fluorescence intensity of CDs in the presence of different metal ions. (b) Steady decline in fluorescence intensity of CDs with increasing Fe3+ concentration, (c) relative fluorescence response of CDs (F0/F) as a function of Fe3+ concentration.

Fig. 6