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A novel signal amplification strategy based on the competitive reaction between 2D Cu-TCPP(Fe) and polyethyleneimine (PEI) in the application of an enzyme-free and ultrasensitive electrochemical immunosensor for sulfonamide detection

Chemical EngineeringEngineeringBioanalysisCompetitive ReactionAnalytical ChemistryBiomedical EngineeringElectroanalytical SensorNanosensorUltrasensitive Electrochemical ImmunosensorChemical SensorSulfonamide DetectionElectrochemistry