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61,005 resultsShowing papers similar to Analysis of microplastics in water by micro-Raman spectroscopy: Release of plastic particles from different packaging into mineral water
ClearCharacterization of microplastics in water bottled in different packaging by Raman spectroscopy
Researchers detected and characterized microplastics in bottled water from different packaging types using Raman spectroscopy, confirming that plastic contamination occurs across various commercial water bottle materials.
Microplastic and nanoplastic analysis in drinking water and indoor air with Raman micro-spectroscopy
Raman micro-spectroscopy was used to detect and characterize micro- and nanoplastics in drinking water and indoor air, demonstrating the technique's value for assessing human exposure to plastic particles across multiple environments.
Quantitative analysis of microplastics in water by Raman spectroscopy: influence of microplastic concentration on Raman scattering intensities
Researchers investigated quantitative Raman spectroscopy for detecting microplastics directly in water, finding that Raman scattering intensities varied with concentration for both PVC spheres (40-100 um) and PE spheres (40-48 um) dispersed in de-ionized water at 0.1-1.0 wt%.
Raman spectroscopy for microplastic detection in water sources: a systematic review
This systematic review summarizes how Raman spectroscopy, a type of light-based analysis, is used to identify microplastics in drinking water, oceans, and wastewater. Polystyrene, polyethylene, and polypropylene were among the most commonly detected plastics across all water sources. Better detection methods like this are essential for understanding the extent of microplastic contamination in the water we drink.
The Raman Spectroscopy Approach to Different Freshwater Microplastics and Quantitative Characterization of Polyethylene Aged in the Environment
Researchers used Raman spectroscopy to identify and characterize microplastics from multiple freshwater sites feeding the Baltic Sea, finding polypropylene, polyethylene, polycarbonate, and polystyrene as the most common polymer types. The study also demonstrated that Raman spectra can provide quantitative information on the crystallinity and density of aged polyethylene, enabling assessment of environmental weathering.
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.
Analysis of microplastics in food, mineral water and in mineral water process lines by FTIR and Raman microspectroscopy
Researchers developed validated FTIR and Raman microspectroscopy methods for detecting microplastic particles below 10 micrometers in food, mineral water, and along mineral water production lines, creating standardized sampling protocols to identify contamination sources and entry points during food processing.
Occurrence of microplastics in bottled water from Croatia: a Raman spectroscopy approach
Researchers analyzed six brands of bottled water sold in Croatia and found microplastics in all of them, with particles as small as 1 micrometer detected using Raman spectroscopy. The most commonly found plastics were PET and polyethylene, and interestingly, bottles made from virgin PET contained more microplastics than those made from recycled PET. The study adds to growing evidence that bottled water is a significant source of human microplastic exposure.
Identifying microplastic particle in the drinking water using Raman spectroscopy method
This Indonesian study used Raman spectroscopy to identify and analyze microplastic content in drinking water and its sources, addressing concerns about plastic particle ingestion through contaminated beverages. Microplastics as small as 5 mm were detected and characterized, with potential health effects including hormonal imbalances and cardiovascular disease noted.
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.
Microplastics in Arctic invertebrates: status on occurrence and recommendations for future monitoring
Researchers used fluorescence microscopy and Raman spectroscopy to characterize microplastics in bottled water from 11 brands sold in China. Concentrations ranged widely across brands, with polypropylene, polyethylene terephthalate, and polystyrene as the most detected polymers.
Microplastics Detection in Streaming Tap Water with Raman Spectroscopy
Researchers demonstrated that Raman spectroscopy can detect and identify microplastic particles in streaming tap water in real time, offering a rapid non-destructive method for monitoring plastic contamination in drinking water.
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.
Detection, Quantification, and Characterisation of Microplastics in Maltese Bottled Water
Researchers detected microplastics in 84% of bottled water samples from five Maltese brands at an average concentration of 35,877 ± 23,542 particles per litre, with an average particle diameter of 2.37 μm and polymers including polyurethane, polyethylene, and polymethyl methacrylate identified by Raman spectroscopy.
Identifying microplastic contamination in drinking water: analysis and evaluation using spectroscopic methods
Researchers developed analytical methods to identify and quantify microplastic contamination in drinking water, evaluating extraction efficiency and detection accuracy across different water types and plastic particle sizes. The study assessed health implications based on measured plastic loads in treated water.
A beaker method for determination of microplastic concentration by micro-Raman spectroscopy
This study developed a faster way to measure microplastic concentrations in water by analysing Raman spectral signals directly in solution, skipping the laborious pre-treatment steps required by traditional methods. The concentration of polyethylene particles was found to correlate predictably with Raman signal intensity using a Langmuir model, enabling a simpler field-ready monitoring approach. Rapid detection tools like this are important for tracking microplastic contamination in drinking water and marine environments.
Analysis of microplastics in food, mineral water and in mineral water process lines by FTIR and Raman microspectroscopy
Researchers developed standardised sampling protocols and analytical methods using FTIR and Raman microspectroscopy to detect microplastic particles below 10 µm in beverages, soluble foods, and mineral water production lines. The study traced sources and entry pathways of microplastics into food products and identified preventive measures applicable to industrial processing environments.
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.
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.
A review of recent progress in the application of Raman spectroscopy and SERS detection of microplastics and derivatives
This review covers advances in using Raman spectroscopy and surface-enhanced Raman spectroscopy (SERS) to detect and identify microplastics in the environment. These techniques offer high resolution and sensitive detection that can identify specific plastic types even at very small sizes. Better detection methods are essential for understanding the true extent of microplastic contamination and its potential risks to human health.
Quantitative Raman analysis of microplastics in water using peak area ratios for concentration determination
Researchers developed a new method using Raman spectroscopy to measure microplastic concentrations in water. By analyzing the ratio of plastic-specific signals to the water signal, they created a reliable calibration model for detecting polyethylene and PVC microplastics, even when multiple plastic types are mixed together. This approach could make it faster and easier to monitor microplastic contamination in real-world water sources.
Analysis of microplastics in drinking water and other clean water samples with micro-Raman and micro-infrared spectroscopy: minimum requirements and best practice guidelines
Researchers compiled best-practice guidelines for detecting and quantifying microplastics in drinking water using micro-Raman and micro-infrared spectroscopy, establishing minimum requirements for sample preparation, measurement parameters, and data reporting to improve comparability across studies.
Do drinking water plants retain microplastics? An exploratory study using Raman micro-spectroscopy
Researchers quantified microplastic retention at a Danish groundwater-fed drinking water treatment plant using Raman spectroscopy, finding that the plant reduced but did not eliminate microplastic particles down to 1 micron in size, with some microplastics present in the treated drinking water output.
Small-sized microplastics and pigmented particles in bottled mineral water
Researchers tested bottled mineral water and found microplastics and pigmented particles present, suggesting that plastic packaging itself may be a source of contamination in commercially sold water.