Analytical methodologies used for screening micro(nano)plastics in (eco)toxicity tests

Silva, Ana L. Patrício; Silva, Sara A.M.; Duarte, Armando C.; Barceló, Damià; Rocha-Santos, Teresa

doi:10.1016/j.greeac.2022.100037

Cited by 10 publications

(3 citation statements)

References 110 publications

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“…The MPs' type and color are important data for determining the origin of MPs [41]. This study identified PP and PE as the highest, with 65.3% in the Jinyeong landfill and 62.5% in the Cheonsan landfill.…”

Section: Types and Colors Of Mps In Soil Near Landfillsmentioning

confidence: 86%

Investigation on Microplastics in Soil near Landfills in the Republic of Korea

Kim,

Park,

Ishii

et al. 2023

Sustainability

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Microplastics can cause physical, chemical, biological, and structural problems in soil. In this study, microplastics were identified in the soil near two landfills where contamination by microplastics was expected. Pretreatment was performed to remove organic matter and to separate microplastics from the soil samples. FT-IR microscope analysis was performed to confirm the quantity and types of microplastics. The colors and shapes of microplastics in the soil were analyzed using a digital microscope. Averages of 73.4 MPs(ea)/kg and 97.8 MPs(ea)/kg of microplastics were identified in the soil at the two landfills. The main shapes of microplastics were fragments, fibers, and films, and it was confirmed that secondary plastics were found at a high rate. The major plastic types were identified as PP and PE, ranging from 62.5 to 65.3% in proportion, followed by PET, PS, nylon, PMMA, and PVC. As for the colors of microplastics, black had the highest percentage, while other microplastics were identified as being white, blue, transparent, gray, green, red, and yellow. These results can be taken as important data indicating that microplastics in the soil around landfills can be affected by landfill waste.

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Section: Types and Colors Of Mps In Soil Near Landfillsmentioning

confidence: 86%

Investigation on Microplastics in Soil near Landfills in the Republic of Korea

Kim,

Park,

Ishii

et al. 2023

Sustainability

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“…(vii) Termogravimetry coupled to diferential scanning calorimetry (TGA-DSC): Tis technique utilizes thermal analysis and weight loss control in TGA or phase change in DSC to identify MPs. Tis approach facilitates the analysis of small samples and enables the identifcation of the thermal decomposition of parliamentarians [95]. In both scenarios, there is a possibility of errors when attempting to distinguish between diferent types of polymers.…”

Section: Chemical Methodsmentioning

confidence: 99%

Microplastics in the Ecosystem: A Systematic Review of the Methods for Their Detection and Removal

Rubiños,

Grados,

Medina

et al. 2023

International Journal of Ecology

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Currently, research on microplastics (MPs) has increased due to their rapid distribution throughout the world and their harmful effects on the ecosystem. However, a detailed description of their dispersion and the methods for both detection and removal has not been given. The objective of this research is to carry out a bibliographic review that allows for a multidisciplinary analysis of microplastic contamination and current detection and removal methods. The method used is PRISMA in which articles from reliable databases such as Scopus, Web of science, and Google Scholar were collected and analyzed to finally provide details on the physical and chemical methods for detecting MPs, in addition to presenting the technologies for their removal. As a result of the analysis, critical information was obtained from the different studies on the impact of MPs on the ecosystem and the variation in detection and removal efficiency according to the type of pretreatment and methods applied to the sample. It is concluded that this research is essential to understand the consequences that MPs have on the ecosystem and provide tools to evaluate and improve current technologies, mainly detection and removal.

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“…The nanoinspection toolbox currently comprises a combination of new analytical solutions and classic in-bulk techniques adapted to target traits and processes at the nanometric scale specifically. − Electrical and thermal conductivity, , optical absorption, and localized surface plasmon resonance , or surface reactivity are examples of magnitudes that can be measured using physicochemical methods reported in the recent literature. The finesse found in the design of nanomaterials and their applications implies the necessity of precisely knowing their behavior down to the single particle (SP) level in some cases .…”

mentioning

confidence: 99%

Ultrafast Laser Excitation Improves LIBS Performance for the Analysis of Optically Trapped Single Nanoparticles Owing to Characteristic Interaction Mechanisms

Burgos-Palop,

Purohit,

Fortes

et al. 2023

Anal. Chem.

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Owing to the exceedingly small mass involved, complete elemental characterization of single nanoparticles demands a highly precise control of signal background and noise sources. LIBS has demonstrated remarkable merits for this task, providing a unique tool for the multielemental analysis of particles on the attogram−picogram mass scale. Despite this outstanding sensitivity, the air plasma acting as a heat source for particle dissociation and excitation is a meddling agent, often limiting the acquisition of an accurate sample signature. Although thermal effects associated with ultrashort laser pulses are known to be reduced when compared to the widely used nanosecond pulse duration regime, attempts to improve nanoinspection performance using ultrafast excitation have remained largely unexplored. Herein, picosecond laser pulses are used as a plasma excitation source for the elemental characterization of single nanoparticles isolated within optical traps in air at atmospheric pressure. Results for picosecond excitation of copper particles lead to a mass detection limit of 27 attogram, equivalent to single particles 18 nm in diameter. Temporally and wavelength-resolved plasma imaging reveals unique traits in the mechanism of atomic excitation in the picosecond regime, leading to a deeper understanding of the interactions occurring in single nanoparticle spectroscopy.

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Analytical methodologies used for screening micro(nano)plastics in (eco)toxicity tests

Cited by 10 publications

References 110 publications

Investigation on Microplastics in Soil near Landfills in the Republic of Korea

Investigation on Microplastics in Soil near Landfills in the Republic of Korea

Microplastics in the Ecosystem: A Systematic Review of the Methods for Their Detection and Removal

Ultrafast Laser Excitation Improves LIBS Performance for the Analysis of Optically Trapped Single Nanoparticles Owing to Characteristic Interaction Mechanisms

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