Research Progress on Separation and Detection Methods of Microplastics in Soil Environment

As a new type of environmental pollutant, microplastics (MPs) exists in the soil environment for long time and pollutes ecological surface system. Separation detection is basis controlling pollution environment. The research progress separation technology was introduced, existing problems methods were put forward. results show that screening-filtration method density are simple, operable effective, but cross-contamination rate high extraction process, recovery high-density not high. Pressurized fluid convenient easy to operate, it may affect particle morphology microplastics. Visual detection, Raman infrared spectroscopy, chromatography mass spectrometry combined pyrolysis analysis have some problems, such as cost, loss samples. In future, necessary further explore analytical microplastics, develop without