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A sensitive fluorescence detection method of organophosphate pesticides (OPs) represented by methamidophos was developed using the inner filter effect (IFE) of Au nanoparticles (AuNPs) on CdTe quantum dots (QDs). The fluorescence of CdTe QDs was remarkably quenched with the presence of AuNPs via IFE. Acetylcholinesterase (AChE) catalyzed the hydrolysis of acetylthiocholine into thiocholine, which...
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