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Measuring micro- and nanoplastics in agricultural soils by py-GC/MS-IRMS
Summary
Researchers applied pyrolysis-GC/MS coupled with isotope ratio mass spectrometry (py-GC/MS-IRMS) to measure micro- and nanoplastics in agricultural soils, demonstrating that this technique can quantify nanoplastic concentrations below the detection limits of optical methods like micro-FTIR and micro-Raman spectroscopy.
Plastic materials and their associated additives have emerged as critical environmental concerns, particularly within agricultural systems. These materials not only affect soil properties but also pose potential risks of absorption by plants, thereby facilitating the trophic transfer of contaminants. The measurement of nanoplastic particles (NPs) presents challenges due to their small size and low concentrations. While techniques such as micro-Fourier transform infrared spectroscopy (µFTIR) and micro-RAMAN are commonly used for identifying microparticles, they lack the capability to quantify NPs (
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