Aiming at the problem that the detection of aquaculture pathogens suffers from difficult isolation,time-consuming and low degree of automation,a detecting method of aquaculture pathogens concentration based on microfluidic system with magnetic isolation was proposed.A dedicated microfluidic chip with automatic sample injecting,magnetic isolation and impedance measurement was designed,and the experiment platform based on microfluidic detection system was built.The optimum impedance measurement frequency,magn...