We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Papers
61,005 resultsShowing papers similar to High-resolution, broad-spectral-range Raman measurement using a spatial heterodyne spectrometer with separate filters and multi-gratings
ClearDetection of microplastics based on splicing grating spatial heterodyne Raman spectroscopy
Researchers developed a new Raman spectroscopy technique using spliced gratings to detect and identify microplastics with improved accuracy and spectral range. The system achieved a spectral resolution of about 5.6 inverse centimeters and successfully identified common microplastic types including polyethylene, polypropylene, and polystyrene. This technology could make field-based microplastic monitoring faster and more reliable than current detection methods.
Detection of microplastic samples based on spatial heterodyne microscopic differential Raman spectroscopy
Researchers built a new optical instrument — spatial heterodyne microscopic differential Raman spectroscopy — specifically designed to identify microplastics more reliably than conventional detectors. The system achieved better signal-to-noise ratios for four common plastic types (PS, PC, PP, HDPE) and suppressed fluorescence interference, all without an expensive microscope. Better detection tools like this are essential for accurately measuring microplastic contamination in environmental samples.
Detection of microplastics based on spatial heterodyne Raman spectroscopy
Researchers developed a spatial heterodyne Raman spectroscopy method for detecting microplastics, offering advantages over existing techniques by reducing detection time, lowering false detection rates, and using more affordable equipment.
Detection of microplastics via a confocal-microscope spatial-heterodyne Raman spectrometer with echelle gratings
Researchers built a confocal microscope combined with an echelle-grating spatial-heterodyne Raman spectrometer for detecting microplastics with high sensitivity and resolution. The system achieved spectral resolution approaching 0.67 wavenumbers per centimeter and successfully identified different plastic polymer types. The study demonstrates an efficient and reliable optical detection method that could improve real-time monitoring of microplastic contamination.
Identification of Microplastics Using a Custom Built Micro-Raman Spectrometer
Researchers built a custom micro-Raman spectrometer and demonstrated its use for identifying microplastic polymer types in environmental samples, achieving sensitive and specific polymer identification at particle sizes down to a few micrometers.
Rapid MicroplasticDetection Using High-ThroughputScreening Raman Spectroscopy
Researchers developed a high-throughput screening Raman spectroscopy system for rapid microplastic detection, overcoming the traditional tradeoff between spatial resolution, field of view, and analytical throughput to enable faster identification of plastic particles across environmental samples with low concentrations.
Unveiling microplastics with hyperspectral Raman imaging: From macroscale observations to real-world applications
This study demonstrated that hyperspectral Raman imaging can identify and characterize microplastics across scales from macro observations to individual particles in real environmental samples, offering advantages over single-point Raman measurements for heterogeneous samples.
Fast Detection andClassification of Microplasticsby a Wide-Field Fourier Transform Raman Microscope
Researchers developed a wide-field hyperspectral Fourier transform Raman microscope for rapid detection and classification of microplastics extracted from environmental matrices. The instrument achieved high spatial resolution and chemical specificity across a large field of view, enabling faster throughput for microplastic identification compared to conventional point-scanning Raman approaches.
Design of a confocal micro-Raman spectroscopy system and research on microplastics detection
Researchers built a custom confocal micro-Raman spectroscopy system designed to detect microplastics more cost-effectively than commercial instruments. The improved signal quality enables more accurate identification of plastic polymer types in environmental samples.
Detection of microplastics via a frequency-shifted excitation confocal micro-differential, spatial heterodyne, Raman spectrometer with echelle-mirror structure
Researchers developed a microplastic detection system integrating frequency-shifted excitation differential spectroscopy, confocal microscopy, and spatial heterodyne Raman spectroscopy with an echelle-mirror structure, enabling more sensitive identification of microplastic particles.
Study on Rapid Recognition of Marine Microplastics Based on Raman Spectroscopy
Researchers developed a rapid identification system for marine microplastics using Raman spectroscopy, enabling quick determination of plastic type and size. Fast, accurate identification tools are critical for monitoring the growing problem of microplastic pollution in ocean environments.
Fluorescence-Guided Raman Spectroscopy with an Integrated Adapter for Faster and Cost-Effective Microplastic Detection
A fluorescence-guided Raman spectroscopy system with integrated adaptive optics was developed to improve detection of microplastics in complex environmental matrices. The instrument advances the sensitivity and speed of microplastic identification, supporting more thorough environmental monitoring.
Applications of Raman spectroscopy for microplastic detection and characterization: a comprehensive spectral reference
This review evaluates Raman spectroscopy as a tool for detecting and identifying microplastics across water, soil, air, and biological samples. The study consolidates reference spectra for common plastic polymers and discusses recent innovations like surface-enhanced Raman techniques that improve detection sensitivity, while also addressing challenges like fluorescence interference in complex samples.
Raman Spectroscopy for the Analysis of Microplastics in Aquatic Systems
This review outlined the current status of Raman spectroscopy for analyzing microplastics in aquatic systems, highlighting its high spatial resolution advantage for detecting small particles while critically assessing its drawbacks and best practices for effective use.
Microplastic identification using Raman microsocpy
Researchers developed and implemented a Raman spectroscopy system for rapid detection and identification of microplastic particles on substrates. The system enables efficient chemical characterization of microplastics found across diverse environmental matrices including ocean, lakes, soil, beach sediment, and human blood.
Visualization and characterisation of microplastics in aquatic environment using a home-built micro-Raman spectroscopic set up
Researchers built an affordable micro-Raman spectroscopy system capable of identifying microplastics in water samples, offering a low-cost alternative to expensive commercial equipment. The system could visualize, measure, and chemically identify different types of microplastic particles. This kind of accessible detection technology is important, especially for developing countries, because widespread monitoring of microplastic pollution in water sources is essential for protecting public health.
Fast Detection and Classification of Microplastics by a Wide-Field Fourier Transform Raman Microscope
Researchers developed a new wide-field Raman microscope that can rapidly detect and identify microplastic particles with high spatial and chemical accuracy. The instrument can image a large sample area in about 15 minutes and identify particles down to roughly one micrometer in size. The technology was validated on microplastics from seawater and biological samples, offering a faster alternative to existing detection methods.
Raman Imaging Spectroscopy: History, Fundamentals and Current Scenario of the Technique
This review covers the history and principles of Raman imaging spectroscopy, a technique increasingly used to identify and map the chemical composition of microplastics in environmental samples. The review provides technical context for one of the most important tools in microplastic analysis.
Identification of microplastics using Raman spectroscopy: Latest developments and future prospects
This review summarizes the latest advances in using Raman spectroscopy to identify microplastics in environmental samples, highlighting improvements in speed, sensitivity, and the ability to characterize plastic type and surface chemistry.
Raman Spectroscopy of Marine Microplastics - A short comprehensive compendium for the environmental scientists
Researchers produced a practical primer on Raman spectroscopy for non-specialist environmental scientists working with marine microplastics, covering instrument principles, sample preparation, spectral interpretation, and common challenges, aimed at improving the reliability and comparability of Raman-based MP identification.
Fluorescence-GuidedRaman Spectroscopy with an IntegratedAdapter for Faster and Cost-Effective Microplastic Detection
Researchers developed an integrated adapter that combines fluorescence staining guidance with Raman spectroscopy within a single instrument for microplastic analysis, producing a cost-effective approach that increases detection speed and accuracy compared to using these methods sequentially on separate instruments.
Optical Extraction of Single Microplastics Followed by Online Molecular and Elemental Characterization
A new three-part instrument was built that uses an optical laser trap to isolate individual microplastic particles from complex samples, then identifies the polymer type using Raman spectroscopy and measures the particle's carbon mass using mass spectrometry. This advance allows much smaller microplastics to be detected and identified in difficult environmental matrices like soil or high-carbon water, improving the precision of contamination assessments.
Rapid Microplastic Detection Using High-Throughput Screening Raman Spectroscopy
Researchers developed a high-throughput Raman spectroscopy platform combining a 3.15 × 2.10 mm field of view with 1.4 µm spatial resolution for rapid label-free detection of microplastics. The system integrates automated particle recognition, autofocus correction, and spectral acquisition, significantly reducing analysis time compared to conventional micro-Raman approaches.
An aberration-free line scan confocal Raman imager and type classification and distribution detection of microplastics
Researchers developed an advanced Raman imaging system that can identify and classify microplastics as small as 1 micrometer in diameter with 98% accuracy, working about 100 times faster than traditional methods. The system can also detect harmful chemical residues like phthalate plasticizers on microplastic surfaces. Faster and more accurate detection tools like this are essential for understanding the full scope of microplastic contamination in food and water and its potential impact on human health.