We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Rapid and efficient method for assessing nanoplastics by an electromagnetic heating pyrolysis mass spectrometry
AI summary Read the abstract
Researchers developed an electromagnetic heating pyrolysis mass spectrometry method for rapid nanoplastic characterization, demonstrating fast polymer identification and quantification at low concentrations in complex environmental samples compared to conventional thermal analysis.
Nanoplastics are an emerging topic and have attracted increasing attention due to their widespread existence and potential toxicity on living organisms. The challenges of analytical methods for nanoplastics hinder the deeper understanding of toxicological effects and risk assessment of nanoplastics. In this work, a custom-built electromagnetic heating pyrolyzer was coupled to mass spectrometry for the rapid analysis of nanoplastics. Nanoplastics/microplastics were collected on the heat-resisting filter papers, then directly decomposed into gaseous products in the pyrolyzer and analyzed by mass spectrometry. The polystyrene nanoparticles were used to verify the performance of mass-traced quantification, and recoveries of 106-121% and precision of 9% were obtained. As a proof-of-principle experiment, the saline solution packed by polypropylene infusion bottles was aged for simulating indoor sunlight storage, where nanoplastics/microplastics were analyzed. The abundance models of nanoplastics/microplastics in the saline infusion bottle with aging time were assessed from both quality and quantity, for the first time. Results showed that nanoplastics/microplastics in medical infusion products could be generated under indoor sunlight exposure, which needs more attention due to the potential health risks. The proposed electromagnetic heating pyrolysis-mass spectrometry could be a promising method for assessing nanoplastics/microplastics.
More Papers Like This
Efficient Extraction and Analysis of Nanoplastics by Ionic Liquid-Assisted Cloud-Point Extraction Coupled with Electromagnetic Heating Pyrolysis Mass Spectrometry
AI summary Read the abstract
Researchers developed an ionic liquid-assisted cloud-point extraction method coupled with electromagnetic heating pyrolysis mass spectrometry for efficiently extracting and identifying nanoplastics from environmental samples, achieving detection limits suitable for environmental monitoring.
Fast identification of microplastics in complex environmental samples by a thermal degradation method
AI summary Read the abstract
Researchers developed a fast identification method for microplastics in complex environmental samples using thermal analysis, offering a high-throughput alternative to spectroscopic techniques for polymer identification.
Direct Identification of Microplastics by Ambient Pyrolysis Electrospray Ionization Mass Spectrometry
AI summary Read the abstract
Researchers developed an ambient pyrolysis electrospray ionization mass spectrometry method that identifies microplastic polymer types within 2.4 seconds by vaporizing particles at 400°C and generating characteristic spectral fingerprints, enabling accurate discrimination among polyolefins, polyesters, polyamides, and acrylates in environmental samples without prior sample preparation.
Detection of nanoplastics released from consumer plastic food containers by electromagnetic heating pyrolysis mass spectrometry
AI summary Read the abstract
Researchers developed a rapid method combining electromagnetic heating with mass spectrometry to detect and quantify nanoplastics released from consumer plastic food containers. They found that common containers released measurable quantities of nanoplastic particles, with concentrations varying based on container type and heating conditions. The study provides evidence that everyday food packaging is a direct source of nanoplastic exposure through the diet.
Rapid Monitoring Approach for Microplastics Using Portable Pyrolysis-Mass Spectrometry
AI summary Read the abstract
Researchers developed a rapid monitoring method for microplastics using a portable pyrolysis-mass spectrometry system that can identify polymer types and quantify particles smaller than 5 mm in the field without lengthy laboratory preparation. The approach offers a promising tool for fast, on-site microplastic surveillance in environmental samples.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.