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Papers
61,005 resultsShowing papers similar to Characterization of Botanical Parts of Erythrina crista-galli Using Pyrolysis-Gas Chromatography/Mass Spectrometry and Multivariate Analysis
ClearQuantitative Detection of Natural Rubber Content in Eucommia ulmoides by Portable Pyrolysis-Membrane Inlet Mass Spectrometry
Researchers developed a portable pyrolysis-membrane inlet mass spectrometry (PY-MIMS) method for the rapid and quantitative detection of natural rubber content in Eucommia ulmoides, offering a fast analytical tool for quality control in rubber and biopolymer applications.
Effects of grafting on chemical constituents, toxicological properties, antithrombotic activity, and myocardial infarction protection of styrax secreted from the trunk of Liquidambar orientalis Mill
Researchers grafted Liquidambar orientalis, the source of the medicinal balsam styrax, onto the widely distributed L. formosana rootstock to address resource shortages. Chemical analysis and biological testing compared the composition and therapeutic properties of styrax from grafted plants with that from the original endangered species.
Systematic Identification of Bioactive Compositions in Leaves of Morus Cultivars Using UHPLC-ESI-QTOF-MS/MS and Comprehensive Screening of High-Quality Resources
Ultra-high-performance liquid chromatography coupled with mass spectrometry was used to systematically identify bioactive compounds in leaves from multiple Morus (mulberry) cultivars, revealing diverse phenolic acids, flavonoids, and alkaloids with metabolic health benefits. The study establishes a comprehensive chemical fingerprint for mulberry leaves and identifies high-quality cultivars for development as dietary supplements.
A pyrolysis‐gas chromatography/mass spectrometry study of volatile compounds produced by wood‐based materials
Researchers used a pyrolysis technique to analyze what volatile compounds are released when common wood-based building materials are heated to high temperatures. They identified benzene, toluene, and other potentially harmful chemicals released between 300 and 800 degrees Celsius. The findings are relevant to understanding what firefighters and building occupants might be exposed to during fires involving wood construction materials.
Rapid Determination of Taraxacum kok-saghyz Rubber Content by Pyrolyzer Hyphenated with a Miniaturized Mass Spectrometer
Not relevant to microplastics — this paper develops a pyrolysis-mass spectrometry method to rapidly quantify natural rubber content in the dandelion species Taraxacum kok-saghyz, a candidate alternative to rubber trees.
Application of Band-Selective HSQC NMR in Species Discrimination and Adulteration Identification of Panax Linn
This is an analytical chemistry paper presenting an NMR method to distinguish and detect adulteration among Panax ginseng species; it is not a microplastics research paper.
Green synthesis of lignin nano- and micro-particles: Physicochemical characterization, bioactive properties and cytotoxicity assessment.
This study produced lignin nanoparticles and microparticles using a green synthesis method and characterized their properties, finding they have good thermal stability and bioactive characteristics. While focused on biomaterial applications rather than pollution, lignin-based particles represent a potential biodegradable alternative to conventional plastic microbeads used in consumer products.
Elucidating Biomass-Derived Pyrolytic Lignin Structures from Demethylation Reactions through Density Functional Theory Calculations
This study used density functional theory calculations to investigate the structural transformations of pyrolytic lignin during demethylation reactions, providing molecular-level insight into degradation pathways relevant to upgrading biomass pyrolysis oil into fuel and chemical feedstocks.
Development of Analytical Methods for Bio‑Oil Characterization
This is a doctoral thesis focused on developing analytical methods for characterizing bio-oil from biomass pyrolysis, aimed at renewable fuel applications — it is not a microplastics research paper.
Relationship between Phenotypes and Chemical Profiling of Boesenbergia rotunda Collected from Different Habitats of Northern Thailand
This is a plant science study on the morphological, genetic, and phytochemical diversity of fingerroot (Boesenbergia rotunda) landraces from Northern Thailand; it is not a microplastics research paper.
Analytical and experimental solutions for Fourier transform infrared microspectroscopy measurements of microparticles: A case study on Quercus pollen.
Researchers developed analytical and experimental solutions to correct for Mie-type scattering distortions in FTIR microspectroscopy spectra of microparticles, using Quercus pollen as a model system to validate the approach for improving chemical identification in microplastics analysis.
Rapid Determination of Taraxacum kok-saghyz Rubber Content Using a Pyrolyzer Hyphenated with a Miniaturized Mass Spectrometer
Researchers developed a pyrolysis-mass spectrometry (PY-MS) instrument for rapid quantification of natural rubber content in Taraxacum kok-saghyz, a promising alternative rubber-producing plant, achieving a correlation coefficient above 0.99, recovery rates of 93.27-107.83%, and analysis times of just 10 minutes per sample. The portable system design enables on-site, in situ analysis to support TKS breeding programs and has potential application for assessing rubber content in other high-molecular-weight polymer-producing plants.
Exploring the pyrolysis of agave species as a novel bioenergy source: thermo-kinetics, modeling, and product composition insights
Researchers investigated the pyrolysis of three agave species (Agave sisalana, Agave tequilana, and Agave wercklei) as a bioenergy source, applying solid characterisation, Py-GC/MS, and multi-step kinetic modelling to correlate species heterogeneity in inorganic composition with differences in volatile product distribution.
Use of untargeted metabolomics to profile the foliar metabolome of Mitragyna speciosa under varying light and water conditions
Researchers used untargeted metabolomics to profile how light intensity and water availability shape the foliar chemistry of kratom seedlings, finding that high light reduced nitrogen-based alkaloids while increasing photoprotective compounds, and that low light combined with low water triggered an antioxidant stress response.
Discriminação De Solos Coletados Em Cena De Crime Simulada
This forensic science study tested whether soil samples from different locations in southern Brazil could be distinguished using electron microscopy, X-ray spectroscopy, and infrared spectroscopy. All techniques successfully differentiated soils by origin, supporting their use as forensic evidence.
Non-destructive testing of mechanical properties of solid wood panel based on partial least squares structural equation modeling transfer method
Researchers developed two calibration transfer methods for near-infrared spectrometers to allow wood quality prediction models built on one device to work on another. The structural equation modeling approach improved cross-instrument consistency without needing full recalibration. This has practical value for industrial quality control of wood products using portable or distributed NIR devices.
Unleashing the Potential of Portuguese Agroforestry Biomass: Extraction, Characterization, and Valorization of Biomolecules
This review examines the extraction, characterization, and valorization of biomolecules including polysaccharides, phenolics, and essential oils from Portuguese agroforestry species such as carob, cork oak, aromatic plants, and maritime pine, highlighting eco-friendly extraction techniques and applications in food, pharmaceuticals, and bio-based materials.
Exploring the Potential of Fique Fiber as a Natural Composite Material: A Comprehensive Characterization Study
This study comprehensively characterized fique fiber (from the Furcraea plant) for potential use as a natural engineering composite material, analyzing its chemical composition, physical, thermal, mechanical, and textile properties.
Predictive Modeling of Traditional Korean Paper Characteristics Using Machine Learning Approaches (Part 1): Discriminating Manufacturing Origins with Artificial Neural Networks and Infrared Spectroscopy
Not relevant to microplastics — this study uses infrared spectroscopy and machine learning (neural networks, PCA) to identify the geographic manufacturing origin of Hanji, a traditional Korean handmade paper.
Bibliometric Evaluation of Lagerstroemia
Not relevant to microplastics research; this paper is a bibliometric analysis of scientific publications on Lagerstroemia, an ornamental flowering plant genus, examining research trends in its ecology and medicinal uses.
ANTIBACTERIAL AND ANTIBIOFILM ACTIVITIES OF Swietenia macrophylla King ETHANOLIC EXTRACT AGAINST FOODBORNE PATHOGENS
Researchers tested ethanolic extracts from Swietenia macrophylla (big-leaf mahogany) against four foodborne bacterial pathogens including Salmonella typhimurium and E. coli. The extract showed significant antibacterial and antibiofilm activity against all tested pathogens, with GC-MS analysis identifying terpenoids and other phytochemical components responsible for the activity.
Study of Oleaster Oil’s Falsification by ATR-FTIR and Chemometrics Tools
Researchers applied ATR-FTIR spectroscopy combined with chemometric methods to detect adulteration in oleaster oil samples, successfully building a model capable of identifying falsification at concentrations as low as 1.5%, demonstrating a rapid analytical tool for food authenticity testing.
[Screening of quality markers and activity verification of Glycyrrhizae Radix et Rhizoma based on small molecule compound-protein interaction].
Researchers screened 27 chemical compounds in licorice root (Glycyrrhizae Radix) to identify quality markers by measuring how strongly each compound binds to mouse organ proteins. Seven active components were identified, and their anti-inflammatory and antioxidant properties were confirmed in a cell model where macrophages were stressed using microplastics.
Investigation of new analysis methods for simultaneous and rapid identification of five different microplastics using ATR-FTIR spectroscopy and chemometrics
Researchers developed and evaluated ATR-FTIR spectroscopy combined with chemometric analysis for simultaneous rapid identification of five common microplastic polymer types in water samples. The method achieved high classification accuracy across polymer types, offering a faster and more automated alternative to conventional single-polymer identification approaches.