Microwave-assisted-hollow filter-liquid/liquid micro-extraction device and application

The invention relates to a microwave-assisted-hollow filter-liquid/liquid micro-extraction device and an application thereof. At first, a hollow fiber tube with molecular weight cutoff more than a specific molecular weight is selected and cut into small tubes with a proper length; a certain amount of organic solvent is injected, the ends of the hollow fiber tube are sealed and the hollow fiber tube is fixed on silica gel pieces and arranged in a small sample bottle; and a sample phase-supply solution is extracted by using the extraction device. The microwave-assisted-hollow filter-liquid/liquid micro-extraction device provided by the invention synchronously separates, extracts, purifies and enriches a trace amount of target compounds in a complex matrix sample with liquid/liquid micro-extraction combination according to the properties that the pore size of the hollow fiber tube can be used for simply, conveniently and effectively retaining and separating the ineffective bio-macromolecules; and meanwhile, the