New Approaches for Micro(Nano)Plastics Analysis DOI
Melkamu Biyana Regasa

Published: June 7, 2024

In the 21st century, micro- and nanoplastics have become among emerging global pollutants resulting from excessive use of plastic products disposal waste extensively. These are persistent, tend to accumulate in environment, a negative impact on both human health ecology. Accurate identification quantification using suitable analytical methods important better understand mitigate effects these pollutants. Various conventional advanced been applied for analysis environment. Owing severity this issue, new approaches based combination two or more methods. Different microscopic, spectroscopic, thermal, electroanalytical techniques widely used different environmental compartments. Each has advantages disadvantages. Recently, development application seen an exponential growth. Therefore, chapter presents developments single methods, bi-analytical multi-analytical by emphasizing developed employed nanoplastics.

Language: Английский

Mass spectrometry detection of environmental microplastics: Advances and challenges DOI Open Access
Junjie Zhang, Dongdong Fu,

Huan Feng

et al.

TrAC Trends in Analytical Chemistry, Journal Year: 2023, Volume and Issue: 170, P. 117472 - 117472

Published: Dec. 2, 2023

Language: Английский

Citations

28
Introducing “time-of-flight single particle investigator” (TOF-SPI): a tool for quantitative spICP-TOFMS data analysis DOI Creative Commons
Alexander Gundlach‐Graham, Stasia Harycki, Sarah Szakas

et al.

Journal of Analytical Atomic Spectrometry, Journal Year: 2024, Volume and Issue: 39(3), P. 704 - 711

Published: Jan. 1, 2024

TOF-SPI is software for accurate, robust, and high-throughput analysis of single-particle ICP-TOFMS data.

Language: Английский

Citations

12
Current status and emerging techniques for sampling, separating, and identifying microplastics in freshwater environments DOI
Mengyang Liu, Mengyang Liu, Kazi Belayet Hossain

et al.

TrAC Trends in Analytical Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 118151 - 118151

Published: Jan. 1, 2025

Language: Английский

Citations

2
Challenges in measuring nanoparticles and microparticles by single particle ICP-QMS and ICP-TOFMS: size-dependent transport efficiency and limited linear dynamic range DOI Creative Commons
Madeleine Lomax-Vogt, Lucas Carter, Jonas Wielinski

et al.

Journal of Analytical Atomic Spectrometry, Journal Year: 2025, Volume and Issue: 40(3), P. 848 - 859

Published: Jan. 1, 2025

While spICP-MS has been used mainly to measure nanoparticles, it can also be microparticles. The transport efficiency of nanoparticles is typically independent their size. However, the microparticles particle size (mass) dependent as well being on sample uptake rate and introduction system used. To both a very large linear dynamic range (where signal intensity linearly proportional measured analyte(s) mass within short measurement time (∼300 500 µs, width signals produced by an individual particle)) needed. Deviations from linearity could occur due incomplete vaporization or that are beyond instrument's ion detection range. characterize determine cause nonlinearity we sets nearly monodisperse engineered SiO2 particles with diameters 5000 nm Au 60 1500 nm. We found reducing sensitivity (up factor 269×) upper end range, in intensities were (analyte) mass, greatly extended. Not surprisingly, increased minimum detectable particle. results consistent completely vaporized ICP.

Language: Английский

Citations

1
Single-Particle ICP-TOFMS with Online Microdroplet Calibration: A Versatile Approach for Accurate Quantification of Nanoparticles, Submicron Particles, and Microplastics in Seawater DOI
Stasia Harycki, Alexander Gundlach‐Graham

Analytical Chemistry, Journal Year: 2023, Volume and Issue: 95(41), P. 15318 - 15324

Published: Oct. 3, 2023

Single particle inductively coupled plasma time-of-flight mass spectrometry (spICP-TOFMS) is a powerful analytical technique for quantifying elements in nanoparticles and microparticles; however, like most ICP-MS-based measurements, matrix effects can be major challenge accurate quantification spICP-MS. Here, we report the use of online microdroplet calibration to overcome extreme observed analysis microparticles seawater. With calibration, particle-containing samples are introduced into ICP along with monodisperse microdroplets containing known element amounts. The standards, which experience same conditions as analyte particles, used measure matrix-matched absolute sensitivities. one multielemental standard determine amounts diverse types particles independent sample matrix. We evaluate tolerance spICP-TOFMS through metal nanoparticles, polystyrene microplastic beads doped rare-earth elements, metal-oxide submicrometer artificial Our results demonstrate recoveries 98-90% individual gold NPs ultrapure water 99% In food-grade TiO2 submicron Ti-mass per determined matrix-caused signal attenuation up 80% pure seawater also diameter determinations 3.4 μm at concentrations simulated Furthermore, simultaneous achieved.

Language: Английский

Citations

14
Results of an interlaboratory comparison for characterization of Pt nanoparticles using single-particle ICP-TOFMS DOI Creative Commons
Lyndsey Hendriks, Robert Brünjes,

Sara Taskula

et al.

Nanoscale, Journal Year: 2023, Volume and Issue: 15(26), P. 11268 - 11279

Published: Jan. 1, 2023

This study describes an interlaboratory comparison (ILC) among nine (9) laboratories to evaluate and validate the standard operation procedure for single-particle (sp) ICP-TOFMS developed within context of Horizon 2020 project ACEnano.

Language: Английский

Citations

12
Analysis of microplastic particles by using single particle inductively coupled plasma mass spectrometry DOI

Apinya Sakanupongkul,

Kalyanee Sirisinha, Rattaporn Saenmuangchin

et al.

Microchemical Journal, Journal Year: 2024, Volume and Issue: 199, P. 110016 - 110016

Published: Jan. 20, 2024

Language: Английский

Citations

5
Differentiating Microplastics from Natural Particles in Aqueous Suspensions Using Flow Cytometry with Machine Learning DOI
Xinjie Wang, Yang Li, Alexandra Kröll

et al.

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 58(23), P. 10240 - 10251

Published: May 28, 2024

Microplastics (MPs) in natural waters are heterogeneously mixed with other particles including algal cells and suspended sediments. An easy-to-use rapid method for directly measuring distinguishing MPs from naturally present colloids the environment would expedite analytical workflows. Here, we established a database of MP scattering fluorescence properties, either alone or mixtures particles, by stain-free flow cytometry. The resulting high-dimensional data were analyzed using machine learning approaches, unsupervised (e.g., viSNE) supervised random forest algorithms). We assessed our approach identifying quantifying model diverse sizes, morphologies, polymer compositions various suspensions phototrophic microorganisms, biofilms, mineral sediment. could precisely quantify microbial phototrophs sediments high organic carbon both models (identification accuracies over 93%), although it was not possible to distinguish between different sizes compositions. By testing environmental samples through spiking into freshwater samples, further highlight applicability be used as screening tool MPs. Collectively, this workflow can easily applied set assess presence time-efficient manner.

Language: Английский

Citations

5
Determination of carbon in microplastics and single cells by total consumption microdroplet ICP-TOFMS DOI Creative Commons
Thomas Vonderach, Alexander Gundlach‐Graham, Detlef Günther

et al.

Analytical and Bioanalytical Chemistry, Journal Year: 2023, Volume and Issue: 416(11), P. 2773 - 2781

Published: Dec. 8, 2023

Abstract Recently, spICP-MS analyses of microplastics have demonstrated that the detection capabilities ICP-MS are sufficient to determine size and composition such materials. However, solution nebulization or microdroplet generation limits sizes droplets, microparticles, cells can be efficiently introduced into commonly used horizontal configurations. Therefore, we development a downward-pointing ICP coupled time-of-flight mass spectrometer (ICP-TOFMS), which enables quantitative transport large microdroplets (diameters up 90 µm) ICP. Here, report downward ICP-TOFMS for analysis single microplastic particles. For calibration element amount per particle cell, (70 µm diameter) composed multielement solutions were measured by ICP-TOFMS. Microplastic beads (polystyrene) spleenocyte then also embedded in with ion optics optimized signals from 12 C + other isotopes interest, including 140 Ce, 153 Eu, 165 Ho, 175 Lu REE 31 P cells. The results achieved using prototype instrument vertical demonstrate plasma configuration is well suited analyze microbead cell analyses, critical carbon was 4.8 pg, mean determined amounts 14 23 respectively. analysis, detected corresponds diameter 2.93 ± 0.24 µm, consistent scanning (transmission) electron microscopy–determined 2.97 0.04 µm. Furthermore, cells, phosphorus masses correlated. Graphical abstract

Language: Английский

Citations

11
Analytical capabilities of LA-ICP-ToF-MS for ultra-fast 2D quantitative elemental mapping of micrometeorites DOI Creative Commons
Stepan M. Chernonozhkin, Thibaut Van Acker, Stijn J. M. Van Malderen

et al.

Journal of Analytical Atomic Spectrometry, Journal Year: 2024, Volume and Issue: 39(4), P. 1050 - 1056

Published: Jan. 1, 2024

LA-ICP-ToF-MS elemental mapping is often referred to as a semi-quantitative approach, but in this work it was demonstrated capable of providing quantitative 2D element distribution maps for micrometeorites with high accuracy and precision.

Language: Английский

Citations

4