Detection of Malachite Green in Water Using Edge Excited Label Free Fluorescent Probe NCQDs

The fluorescent properties of nitrogen doped carbon quantum dots (NCQDs) prepared through microwave assisted green method has been used as label free fluorescent probe for selective and sensitive detection of malachite green (MG) in water. The optical responses revealed that the NCQDs are highly sta...

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Bibliographic Details
Published in:Journal of fluorescence 2020-12, Vol.30 (6), p.1281-1285
Main Authors: Singh, Ranjana, Singh, Ranjan K.
Format: Article
Language:English
Subjects:
Analytical Chemistry
Biochemistry
Biological and Medical Physics
Biomedical and Life Sciences
Biomedicine
Biophysics
Biotechnology
Drinking water
Fluorescent indicators
Malachite green
Quantum dots
Short Communication
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Summary:The fluorescent properties of nitrogen doped carbon quantum dots (NCQDs) prepared through microwave assisted green method has been used as label free fluorescent probe for selective and sensitive detection of malachite green (MG) in water. The optical responses revealed that the NCQDs are highly stable and have good fluorescent quantum yield. The NCQDs were used to detect the Malchite Green in Mili Q water. Reduction in the fluorescence response was monitored in the range 17.12–128.43 μM of MG dissolved in Mili Q water. Linear response was observed in the range, 10–80 μM. The calculated value of limit of detection is 5.16 μM and the sensitivity is (0.03536 ± 0.00001) μM −1 . The future application of this work is that it can be employed to detect MG in the tap water and other natural sources of water.
ISSN:1053-0509
1573-4994
DOI:10.1007/s10895-020-02603-1