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61,005 resultsShowing papers similar to Quantitative sizing of microplastics up to 20 µm using ICP-TOFMS
ClearExtending the Linear Dynamic Range of Single Particle ICP-MS for the Quantification of Microplastics
Researchers developed an improved method using single particle inductively coupled plasma mass spectrometry to detect and measure microplastics across a wider size range than previously possible. By extending the linear dynamic range of the technique, they could more accurately size and count larger microplastic particles. The advancement addresses a key limitation in current microplastic analytical methods and could improve environmental monitoring.
Extending theLinear Dynamic Range of Single ParticleICP-MS for the Quantification of Microplastics
Researchers extended the linear dynamic range of single-particle ICP-MS for microplastic quantification to enable detection across a wider concentration range with high throughput. The method improvements allow more accurate characterisation of MP particle number and size distributions in environmental and biological samples.
Multimethod Platform Based on Dynamic Image Analysis and spICP-MS for Number-Based Quantification of Microplastics
Researchers developed and validated a multimethod analytical platform combining dynamic image analysis and single-particle ICP-MS to reliably quantify the number concentration of small microplastics (1-10 µm), a size range that has been difficult to measure accurately with existing methods.
Novel calibration approach for particle size analysis of microplastics by laser ablation single particle-ICP-MS
Researchers developed a new calibration method for sizing microplastic particles using laser ablation coupled with mass spectrometry, eliminating the need for costly certified reference materials. Using a polystyrene thin film as the calibration standard, they achieved accurate sizing of particles as small as 2 micrometers across multiple polymer types. The approach demonstrated broad applicability and high transport efficiency, suggesting it could become a universal tool for microplastic particle analysis.
Characterization of a high-sensitivity ICP-TOFMS instrument for microdroplet, nanoparticle, and microplastic analyses
Researchers characterized the capabilities of an ICP time-of-flight mass spectrometry instrument for single-droplet and single-particle analysis, demonstrating its high sensitivity for simultaneously detecting multiple elements in individual microdroplets, nanoparticles, and microplastic particles.
Nanoplastics prepared with uniformly distributed metal-tags: a novel approach to quantify size distribution and particle number concentration of polydisperse nanoplastics by single particle ICP-MS
Researchers developed a new method for creating nanoplastic test particles with embedded metal tags, allowing scientists to precisely measure the size and number of nanoplastics using single-particle mass spectrometry. The particles have realistic irregular shapes and varied sizes, unlike the uniform spheres typically used in lab studies. This tool will help researchers more accurately study how nanoplastics behave in environmental and health experiments.
MultimethodPlatform Based on Dynamic Image Analysisand spICP-MS for Number-Based Quantification of Microplastics
Researchers developed and validated a multimethod platform combining dynamic image analysis (DIA) and single-particle ICP-MS (spICP-MS) for reliably quantifying the number concentration of small microplastics (1-10 µm), identifying critical instrument parameters that affect measurement accuracy for each technique.
Investigation and Correction of Size-Dependent Transport Efficiencies of Microparticles in SP ICP-MS Analysis
Size-dependent transport effects were identified and corrected for in microplastic sampling methodologies, showing that standard collection nets and filters underrepresent certain size fractions. Addressing these biases is necessary for generating accurate estimates of microplastic abundance across size ranges.
Assessing diversity, abundance, and mass of microplastics (~ 1–300 μm) in aquatic systems
Researchers developed improved methods for quantifying very small microplastic particles (roughly 1 to 300 micrometers) in freshwater systems, showing that conventional sampling dramatically underestimates plastic particle counts. Accurately measuring this smaller size fraction is critical for understanding real-world microplastic concentrations and their biological impacts.
Analysis of Single Sub-Millimeter Microplastic Particles by Capillary Size Exclusion Chromatography
Researchers developed capillary size-exclusion chromatography to analyze individual sub-millimeter microplastic particles, enabling particle-level evaluation of degradation state and diversity to support more comprehensive risk assessments of environmentally weathered microplastics.
Recent developments in mass spectrometry for the characterization of micro- and nanoscale plastic debris in the environment
This review examines advances in mass spectrometry techniques for characterizing micro- and nanoplastic debris in environmental samples, covering particle sizing, polymer identification, and quantification approaches. Improved mass spectrometry methods are expanding the ability to detect and characterize nanoplastics, which are particularly challenging to measure with conventional spectroscopic approaches.
Implications of method- and instrument-based size detection limits in μFTIR-based microplastic analysis
This study quantified how both instrument detection limits and methodological choices in micro-FTIR analysis affect reported microplastic concentrations, finding these factors substantially influence numerical results and urging standardization before cross-study comparisons are made.
Size distribution measurement of microplastics using a temporally and spatially resolved inductively coupled plasma optical emission spectrometer (ICP-OES)
Researchers developed a new measurement technique using inductively coupled plasma optical emission spectrometry (ICP-OES) with a specialized torch setup to measure the size distribution of microplastics in water. Improved measurement tools are essential for better characterizing the range of microplastic sizes present in aquatic environments.
Expanding sample volume for microscopical detection of nanoplastics
Researchers developed a method to expand the sample volume analyzed in microscopical detection of nanoplastics, enabling more representative detection of rare nanoplastic particles below 1 micrometer. The approach improved detection limits without proportionally increasing analysis time, advancing practical nanoplastic characterization in environmental water samples.
Direct Measurement of Microplastics by Carbon Detection via Single Particle ICP-TOFMS in Complex Aqueous Suspensions
Researchers developed a single particle ICP-TOFMS method for directly measuring microplastics in complex aqueous suspensions by detecting carbon, successfully differentiating microplastic carbon from natural particles and dissolved organic carbon in environmental samples.
Does particle size affect micro- and nanoplastic quantification by pyrolysis-gas chromatography-mass spectrometry: a study on polystyrene
Researchers investigated whether particle size affects the accuracy of pyrolysis-gas chromatography-mass spectrometry (Py-GC-MS) quantification of micro- and nanoplastics, using polystyrene as a model polymer to assess how sample particle dimensions influence analytical results.
How to trust size distributions obtained by single particle inductively coupled plasma mass spectrometry analysis
Researchers identified a critical flaw in single particle ICP-MS — a technique used to measure the size and concentration of nanoparticles in water — showing that incomplete detection of small particles can produce misleadingly clean-looking size distributions. They developed a validation method using successive dilutions to confirm whether measured data accurately represents the full particle population, which is essential for reliable nanoplastic detection.
Counting Nanoplastics in Environmental Waters by Single Particle Inductively Coupled Plasma Mass Spectroscopy after Cloud-Point Extraction and In Situ Labeling of Gold Nanoparticles
Researchers developed a cloud-point extraction and in-situ gold nanoparticle labeling method combined with single particle ICP-MS to count nanoplastics down to 50 nm in environmental water samples, enabling quantification of nanoplastics previously undetectable by conventional methods.
Analysis of microplastic particles by using single particle inductively coupled plasma mass spectrometry
Researchers developed a method using single particle inductively coupled plasma mass spectrometry to analyze microplastic particles released from consumer products like teabags and face masks. The technique enabled size detection of polystyrene particles down to approximately 400 nanometers, though matrix interference required a particle washing step for accurate measurements. The study demonstrates a promising analytical approach for characterizing microplastics at very small scales from everyday products.
Nanoplastic Labelling with Metal Probes: Analytical Strategies for Their Sensitive Detection and Quantification by ICP Mass Spectrometry
Researchers developed metal probe labelling strategies to enable sensitive detection and quantification of nanoplastics by ICP mass spectrometry, overcoming the challenge that nanoplastics are too small and carbon-rich for conventional analytical techniques to distinguish.
Inclusion of shape parameters increases the accuracy of 3D models for microplastics mass quantification
Researchers found that incorporating shape parameters into 3D geometric models significantly improves the accuracy of microplastic mass quantification, providing a more reliable method for measuring microplastic concentrations in environmental samples.
An Accurate Size-Probability Distribution Method for Converting Microplastic Counts to Mass
Researchers developed a size-probability distribution method to convert microplastic particle counts into mass estimates without requiring detailed morphological measurements for every particle, addressing a key gap in environmental monitoring where mass-based reporting is needed but count-based data is more commonly generated.
Development of microdroplet calibration for the accurate quantification of particles by single-particle ICP-TOFMS
Researchers developed and validated a microdroplet calibration technique for single-particle ICP-TOFMS to improve accuracy and throughput in multi-elemental quantification of nanoparticles and microparticles in complex sample matrices, achieving single-digit attogram detection limits for many elements.
CO2-based matrix-independent carbon quantification approach for single microplastic-ICP-MS analysis
Researchers developed a CO2-based matrix-independent calibration approach for single particle ICP-MS analysis, enabling accurate size determination of microplastics between 2–7 μm without needing particle-type-specific standards.