MICROPLASTIC DETECTION DEVICE AND METHOD BASED ON PYROLYSIS-MASS SPECTROMETRY TECHNOLOGY

摘要

The present invention relates to a microplastic detection device and method based on a pyrolysis-mass spectrometry technology. The technical problems in a microplastic content research device in the prior art of complexity in structure, inconvenience of operation, inability to accurately implement quantitative analysis of components in microplastics, susceptibility to environmental disturbance, large error, low accuracy, waste of time and labor, large instrument occupancy area, and difficulty in application to on-site detection due to that said device can only be operated in labs are solved. The microplastic detection device based on a pyrolysis-mass spectrometry technology provided by the present invention, taken as a whole, is a closed gas path device system formed by pipe connection, and the device comprises a working gas source, a pyrolysis device, a filter, and a mass spectrometer connected in sequence; after a microplastic sample is put into the pyrolysis device, the pyrolysis of the microplastic sample is implemented by the pyrolysis device, and pyrolysis products of the microplastic sample are driven by a working carrier gas and filtered by the filter, and then enter the mass spectrometer for detection and analysis. In addition, a microplastic detection method based on a pyrolysis-mass spectrometry technology is provided. The present invention is widely used in the technical field of microplastic detection.