▎ 摘　　要

NOVELTY - Electrochemical sensor comprises an electrode and an active material coated on the electrode surface. The active substance comprises gold nano-particles and cation column arene-graphene. The gold nanoparticles are loaded on the cion column. Graphene and a cation column are prepared under alkaline condition. Reduction reaction is performed to obtain the cation column. Composite reaction is performed to obtain an active substrate. Mass ratio of oxidation process is determined according to reduction agent. USE - Electrochemical sensor for methyl-to-sulfur phosphorus can also be used for detecting organic pesticide and pesticide residue. ADVANTAGE - The electrochemical sensor of methyl-to-sulphur phosphorus has high sensitivity and low cost. The cation column arene has a super-molecular structure, which can make the methyl parathion enter into the super molecular structure, and has an enrichment function, so as to enhance the electrochemical signal intensity of the sensor to a small amount of methyl to sulfur phosphorus, thus improving the detection sensitivity of the electro-chemical sensor. At the same time, the gold nano-particles by improving the conductivity of the electrode to improve the electrochemically signal strength of the Electrochemical sensor for methyl to sulphur phosphorus. In addition, in the cationic column (5) aromatic hydrocarbon (5C) column (Graphene) is ring-fixed, which improves the stability of the DETAILED DESCRIPTION - An INDEPENDENT CLAIMS is also included for a preparation method of electrochemical sensor of methyl. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the electrochemical sensor for methyl-to-sulfur phosphorus.