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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 4 of 4 for “"Pyrolysis gas chromatography–mass spectrometry (Py-GC/MS)"”.
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Characterization of black deposit associated with rock paintings in Little Lost River Cave, Idaho using Pyrolysis GC
… the coating has an anthropomorphic origin. Using pyrolysis-gas chromatography-mass spectrometry (py-GC-MS) and thermally-assisted hydrolysis/methylation-GC-MS, we have compared samples of the black coating from Idaho to humic acid, a geologic material; an experimental cooking residue; and amberat …
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A study of bone chemistry in forensic applications
… Environmental Scanning Electron Microscopy (ESEM) allowed the classification of bone samples into two categories of young and old based on differences in surface morphology. X-ray Diffraction (XRD) results showed no changes in crystallinity for a post-burial period of 18 months, making …
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Characterizing Organic Coatings on Renaissance Bronzes with Short-Wave Infrared and Mid-Infrared Spectroscopy
… reflection Fourier transform infrared spectroscopy (ER-FTIR) and fibre optic reflectance spectroscopy (FORS)—across the visible/near-infrared (VIS-NIR, ~400–1000 nm), short-wave infrared (SWIR, ~1000–2500 nm), and mid-infrared (MIR, ~2.5–25 μm) ranges. Twenty-six reference mixtures were prepared …
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Analytical Approaches for Analyzing Microplastics Using Pyrolysis Gas Chromatography Mass Spectrometry and Accelerated Solvent Extraction
… act as major sinks for microplastics, yet robust mass-based quantification of polymer composition in these complex matrices remains analytically challenging. This study applies an integrated accelerated solvent extraction (ASE) and pyrolysis–gas chromatography–mass spectrometry (Py-GCMS) workflow …