▎ 摘　　要

NOVELTY - A chitosan-graphene/gold nanoparticle doped carbon nanotube ion imprinting sensor preparing method involves configuring a nano gold solution, subjecting to glassy carbon electrode to mechanical polishing, secondary distilled water and anhydrous ethanol alternately ultrasonically cleaning, performing a cyclic voltammetry scan, platinum electrode as the auxiliary electrode and the saturated silver /silver chloride as the reference electrode, depositing blend in electrolyte on the surface of the glassy carbon electrode by the potentiostatic method, crosslinking in a sodium tripolyphosphate solution and washing with an acetone/water mixed solvent to obtain the finished product. USE - Method for preparing chitosan-graphene/gold nanoparticle doped carbon nanotube ion imprinting sensor for rapid quantitative detection of lead ions in water environment (claimed). ADVANTAGE - The method enables preparing chitosan-graphene/gold nanoparticle doped carbon nanotube ion imprinting sensor with improved electrochemical response and sensitivity of the sensor, high sensitivity and strong anti-interference capability, high efficiency and fast detecting trace lead ions in water environment, in simple, rapid and eco-friendly manner. DETAILED DESCRIPTION - A chitosan-graphene/gold nanoparticle doped carbon nanotube ion imprinting sensor preparing method involves configuring a nano gold solution, subjecting to glassy carbon electrode to mechanical polishing, secondary distilled water and anhydrous ethanol alternately ultrasonically cleaning, performing a cyclic voltammetry scan, adding multi-walled carbon nanotubes to ultrapure water, ultrasonically dispersing the multi-walled carbon nanotubes uniformly, dispersing carbon nanotubes in the surface of the glassy carbon electrode, drying, adding nafion solution to surface of modified electrode, drying, adding acetic acid to the nano gold solution, stirring, adding chitosan, lead acetate and graphene dispersion and magnetically stirring to obtain a deposition liquid, adding deposition liquid to the electrolytic cell, using treated glassy carbon electrode as working electrode, platinum electrode as the auxiliary electrode and the saturated silver /silver chloride as the reference electrode, depositing blend in electrolyte on the surface of the glassy carbon electrode by the potentiostatic method, crosslinking in a sodium tripolyphosphate solution and washing with an acetone/water mixed solvent to obtain the finished product.