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Identification and characterisation of nanoplastics by scanning transmission X-ray spectro-microscopy (STXM) - Spectral data
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This study developed and applied scanning transmission X-ray microscopy to identify and characterise nanoplastics in environmental samples. Researchers found the technique can distinguish nanoplastic particles from other organic materials and provides chemical detail not available from optical methods alone.
This upload contains 2 different files: Identification and characterisation of nanoplastics by scanning transmission X-ray spectro-microscopy (STXM) - Spectral data This data set contains the raw optical densities at each photon energies between 280 and 320 eV of the spectra shown in the following publication: Identification and characterisation of nanoplastics by scanning transmission X-ray spectro-microscopy (STXM) The first column "eV" represents the photon energies [eV] and the spectra are given in the same order of appearance then in the publication. Spectra are identified by figure's number and polymer type in the excel file headers. 2. Identification and characterisation of nanoplastics by scanning transmission X-ray spectro-microscopy (STXM) - figures data The second data set contains the data used for the plots displayed in the main text of the same publication. The raw data and the references published by Dhez et al., 2003 were normalized to fit the same scale. Data are separated in sheets which correspond to figures or figures sub-sections.
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Identification and characterisation of nanoplastics by scanning transmission X-ray spectro-microscopy (STXM) - Spectral data
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This appears to be a companion or duplicate record to a study on nanoplastic characterisation using scanning transmission X-ray microscopy. The paper presents methods and findings on identifying nanoplastics at the sub-micron scale in environmental matrices.
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Researchers tested scanning transmission X-ray microscopy combined with near-edge X-ray absorption spectroscopy as a method to detect and identify individual nanoplastics in environmental and food samples. They successfully characterized nanoplastics from eight common polymer types and confirmed the presence of diverse nanoplastics in unspiked soil samples and tea water from plastic teabags. The technique offers a promising new analytical approach for nanoplastic detection in complex matrices.
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Scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDX) was evaluated as a method for characterizing marine micro- and nanoplastics, and compared with optical, spectroscopic, and chemical approaches. The study finds that SEM-EDX offers complementary information on particle morphology and surface chemistry that aids in identifying plastic particles at small sizes.
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