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Measurement of tyre-based microplastics using traditional and quantum cascade laser-based infrared spectrometry
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Micro-transflectance infrared spectroscopy was demonstrated as a method to characterize tyre-based microplastics down to 20 µm, with traditional attenuated total reflectance suitable for larger particles, providing new analytical pathways for monitoring this important emerging contaminant.
The study presents first time the use of micro transflectance IR to study tyre particles down to 20 µm. Traditional total attenuated reflectance is demonstrated as a suitable way to analyse bigger microplastics. These two options open pathways to monitor this important emerging contaminant in environmental matrices.
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Rapid Identification and Quantification of Microplastics in the Environment by Quantum Cascade Laser-Based Hyperspectral Infrared Chemical Imaging
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Quantum cascade laser infrared microscopy was evaluated as a rapid method for identifying and quantifying microplastics in environmental samples. The technique showed potential for faster polymer identification compared to conventional FTIR mapping, offering advantages for high-throughput microplastic monitoring.
Reviewing the fundamentals and best practices to characterize microplastics using state–of–the-art quantum-cascade laser reflectance-absorbance spectroscopy
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Researchers reviewed best practices for using quantum cascade laser infrared imaging (a high-speed scanning technology) to reliably identify microplastic particles, addressing technical pitfalls like particle-size effects on spectral readings. Standardizing this method is important for generating consistent, comparable data as governments push for official microplastic monitoring programs.
Mid infrared spectroscopy applications using quantum cascade lasers for the identification of microplastic contaminants in aqueous solution
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Researchers reviewed the application of quantum cascade laser-based mid-infrared spectroscopy for identifying and quantifying microplastic contaminants in aqueous solution, examining how standalone compact laser sources, packaged liquid-phase spectrometers, and mid-IR microscopes can detect and classify individual plastic particles by their vibrational spectral signatures.
MicroplasticMass Estimation Using Two-DimensionalChemical Images from Quantum-Cascade Laser-Based Infrared Spectrometers
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Researchers developed a method to estimate microplastic particle mass using two-dimensional chemical images from quantum cascade laser-based infrared microscopy, addressing the inability of standard spectroscopic imaging to provide particle mass data critical for toxicological assessment.
Methodological approach to characterise tyre and road wear particles (TRWP) for environmental monitoring
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Researchers developed a new method for characterizing tire and road wear particles (TRWP) using infrared spectroscopy, addressing the challenge that black carbon in tires absorbs infrared light and makes standard FTIR analysis unreliable. The method allows better quantification and identification of TRWP in environmental samples, an important step for understanding a pollutant that is estimated to be the single largest source of synthetic polymer particles entering the environment. Accurate detection of TRWP is critical for assessing their environmental and health impacts.
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