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Highly Selective Electrochemiluminescence Sensor Based on Molecularly Imprinted-quantum Dots for the Sensitive Detection of Cyfluthrin
- Source :
- Sensors (Basel, Switzerland), Sensors, Volume 20, Issue 3, Sensors, Vol 20, Iss 3, p 884 (2020)
- Publication Year :
- 2020
- Publisher :
- MDPI, 2020.
-
Abstract
- A highly selective and sensitive molecularly imprinted electrochemiluminescence (MIECL) sensor was developed based on the multiwall carbon nanotube (MWCNT)-enhanced molecularly imprinted quantum dots (MIP-QDs) for the rapid determination of cyfluthrin (CYF). The MIP-QDs fabricated by surface grafting technique exhibited excellent selective recognition to CYF, resulting in a specific decrease of ECL signal at the MWCNT/MIP-QD modified electrode. Under optimal conditions, the MIECL signal was proportional to the logarithm of the CYF concentration in the range of 0.2 &micro<br />g/L to 1.0 &times<br />103 &micro<br />g/L with a determination coefficient of 0.9983. The detection limit of CYF was 0.05 &micro<br />g/L, and good recoveries ranging from 86.0% to 98.6% were obtained in practical samples. The proposed MIECL sensor provides a novel, rapid, high sensitivity detection strategy for successfully analyzing CYF in fish and seawater samples.
- Subjects :
- Materials science
02 engineering and technology
Carbon nanotube
Cyfluthrin
lcsh:Chemical technology
010402 general chemistry
01 natural sciences
Biochemistry
Article
Analytical Chemistry
law.invention
chemistry.chemical_compound
law
Electrochemiluminescence
lcsh:TP1-1185
Electrical and Electronic Engineering
Instrumentation
cyfluthrin
Detection limit
Chromatography
Molecularly imprinted polymer
technology, industry, and agriculture
quantum dot
021001 nanoscience & nanotechnology
Highly selective
Atomic and Molecular Physics, and Optics
0104 chemical sciences
chemistry
Quantum dot
electrochemiluminescence sensor
fish samples
Electrode
molecularly imprinted polymers
0210 nano-technology
Subjects
Details
- Language :
- English
- ISSN :
- 14248220
- Volume :
- 20
- Issue :
- 3
- Database :
- OpenAIRE
- Journal :
- Sensors (Basel, Switzerland)
- Accession number :
- edsair.doi.dedup.....b14496c6e9374db3823a8ef1bd4e2ce8