Facile synthesis of nitrogen-doped graphene quantum dots as nanocarbon emitters for sensitive detection of catechol
Xiayi Liang, Wenhao Zhang, Mengqi Zhang, Guanhua Qiu, Yuhong Zhang, Tao Luo, Cunqing Kong
Abstract
), NGQDs exhibit high anodic ECL owing to the presence of functional hydrazide groups. As CC could significantly reduce the ECL intensity of NGQDs, sensitive determination of CC was realized with a linear range from 100 nM to 10 μM and 10 μM to 60 μM with a low limit of detection (LOD, 42 nM). The determination of CC in environmental water was also achieved with high reliability.
Topics & Concepts
Quantum dotGrapheneMaterials scienceElectrochemiluminescenceDetection limitQuantum yieldNanotechnologyHydroquinoneNanomaterialsFluorescenceChemistryOrganic chemistryQuantum mechanicsPhysicsChromatographyCarbon and Quantum Dots ApplicationsAdvanced biosensing and bioanalysis techniquesElectrochemical sensors and biosensors