Article ID Journal Published Year Pages File Type
1558443 New Carbon Materials 2014 9 Pages PDF
Abstract
ZnO-doped carbon quantum dots (CQDs) were prepared by the chemical oxidation of activated carbon followed by zinc acetate impregnation and precipitation. The ZnO-doped CQDs had a stable fluorescence and a high fluorescence quantum yield. The fluorescence of the ZnO-doped CQDs can be quenched by reduction with metronidazole, allowing a flow-injection chemiluminescence method to be used to determine the metronidazole content in tablets. Under optimum conditions, there was a good linear relation between the concentration of metronidazole and the intensity of chemiluminiscence. The linear concentration range examined was 7.5 × 10−4−2.5 × 10−8 g/mL with r = 0.9996 and a detection limit of 1.08×10−10 g/mL.
Related Topics
Physical Sciences and Engineering Materials Science Materials Chemistry
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