Cross pollution-free sample introduction device and control method thereof

摘要: The invention discloses a cross pollution-free sample introduction device and control method thereof. comprises syringe pump, multiported valve, cleaning fluid container, reagent container waste liquid container. pump is provided with first pipe port second the ports are communicated cavity of pump. connected to through valve. main connection valve pipe. Branched interfaces comprise an air inlet, outlet, outlet external several ports. Through gas obstruction core solution in pipe, introduction, grooves do not contact residual reagents so that pollution prevented test analysis accuracy effectively improved. has novel design, convenient for operation, can be implemented easily promotion use.