Method for determining nanoplastic based on cloud point extraction-thermal cracking gas chromatography mass spectrometry

Abstract

Disclosed is a method for determining nanoplastics based on cloud point extraction-thermal cracking gas chromatography mass spectrometry. The method comprises the following steps of: performing cloudpoint extraction on a to-be-determined solution under optimized cloud point extraction conditions, achieving nearly 500-fold enrichment of trace amounts of nanoplastics in water, and maintaining original morphologies and particle sizes of the nanoplastics by using the method; and removing TX-45 in a surfactant phase by using a heating decomposition method after the enrichment by the cloud point extraction, and realizing composition identification and quality determination of the nanoplastics by using a Py-GC/MS method. The method is simple in operation steps and good in stability, the interference of the sample matrix is small, the enrichment factor is high, and the separation and determination of trace amount of nanoplastics in the actual water can be realized.

Description

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AI Technical Summary

Benefits of technology

This technology allows us to extract small particles called nano-plastic (NP), such as plasminogen activator or polyethyleneimine (PEI). These tiny NP are important because they have unique properties that make them useful in various applications like medical treatments. They also help improve their effectiveness by making it easier to remove these materials from aqueous environments through filtration methods.

Problems solved by technology

Technologies described earlier include analyzing small amounts of plasmidic material from different environments into smaller sizes like powders or liquids. However, current techniques require complicated steps involving multiple analyte extraction processes before accurate identification and measurement becomes difficult due to factors like contamination caused by sunlight exposures during manufacturing operations. Additionally, there may be issues associated with identifying specific types of plasmons called nanosheets made up of tiny polymers within this type of matter.

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