Huang Shan

TL;DR: In this article, a method for detecting potassium dichromate by utilizing a graphene quantum dot probe is described, which is characterized by comprising the following steps: (1) establishing a linear relationship: preparing a standard solution of GQD and PDE solution, and obtaining the linear relation between the fluorescent intensity of the graphene quantum dots and the concentration of the PDE through the fluorescent spectra; (2) detecting: detecting the fluorescent intensities of the to-be-detected PDE, and determining the content of PDE in the detected PDE according to the

TL;DR: In this article, a method for synthesizing a rare earth Er-doped CdTe:Er quantum dot by a hydrothermal method is presented, which is carried out in a water solution and has the advantages that the raw materials are easy to acquire, the cost is low, the convenient and safe operation, the environmental protection is realized and the like.

TL;DR: In this article, a method for detecting potassium permanganate through graphene quantum dot fluorescence quenching is described, which is characterized in that a GQ probe is used as a fluorescence probe and by virtue of the characteristic that the fluorescence intensity of the GQ-probe weakens with the increasing of the concentration of a KP solution, high-sensitivity detection is performed.

TL;DR: In this paper, a method for detecting ferric ions through graphene quantum dot probes is described, which is characterized by comprising 1) linear relation establishment including preparing a standard solution of graphene quantum dots and ferric ion to obtain the linear relation between the fluorescence intensity of the quantum dot and the concentration of the ferric atoms from a fluorescence spectrum; 2) detection including detecting the intensity of a ferric intensity of an ion solution to be detected, and according to the linear relations, determining the content of the ion inside the ion solution.

TL;DR: In this article, a method for detecting potassium dichromate and ascorbic acid by using a graphene quantum dot probe is described. But the method is not suitable for high-sensitivity detection.