Electrode, sensor and instant detection system for detecting drugs containing phosphonic acid groups

The invention belongs to the technical field of rapid detection, and discloses an electrode, a sensor and a real-time detection system for detecting drugs containing phosphonic acid groups. The electrode is a molecularly imprinted polypyrrole film/black phosphorus modified screen-printed electrode, and is prepared by the following steps: carrying out electrochemical polymerization reaction on the black phosphorus modified screen-printed electrode in a solution which takes a phosphonic acid group-containing drug as a template molecule and pyrrole as a functional monomer, and eluting with a solvent to remove the template after the reaction is completed. The intelligent electrochemical detection system for instantly detecting the medicine containing the phosphonic acid group is constructed by combining a molecularly imprinted polypyrrole/black phosphorus composite material with a specific recognition function with portable electrochemical equipment and a smart phone. The detection system has the outstanding adva