A novel method for purification, quantitative analysis and characterization of microplastic fibers using Micro-FTIR

Corami, Fabiana; Rosso, Beatrice; Bravo, Barbara; Gambaro, Andrea; Barbante, Carlo

doi:10.1016/j.chemosphere.2019.124564

Cited by 127 publications

(67 citation statements)

References 29 publications

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“…Therefore, it is important to improve new library searching procedures, which are more robust and can handle the problem of comparing the weathered MPs with virgin polymer references. Substrate (holding MPs) has a minimum spectral interference and can immobile the MPs especially for m-FTIR imaging, where the stage moves during scanning (Corami et al, 2020;Vianello et al, 2013;Xu, Thomas, et al, 2019). Therefore, it is necessary to address the importance of appropriate substrate material for obtaining high quality results with minimum spectroscopic interference in the FTIR spectra.…”

Section: Analytical Methods and Future Challengesmentioning

confidence: 99%

Contributions of Fourier transform infrared spectroscopy in microplastic pollution research: A review

Veerasingam

Ranjani

Venkatachalapathy

et al. 2020

Critical Reviews in Environmental Science and Technology

248

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Fourier transform infrared (FTIR) spectroscopy has been extensively used in microplastic (MP) pollution research since 2004. The aim of this review is to discuss and highlight the recent advances in FTIR (spectroscopy and chemical imaging) techniques that are used to characterize various polymer types of MPs and to trace their fate and transport in different environmental matrices. More than 400 research papers dealing with FTIR techniques in MP pollution research, which are published between January 2010 and December 2019, have been identified from the Scopus and Web of Science databases. The MPs present in sediment, water (marine and freshwater), biota, air/dust, waste water treatment plants and salt are further classified according to (1) characterization and identification, (2) weathering and aging, (3) ecotoxicology, and (4) analytical methods. The results revealed that the ATR-FTIR technique is mostly used to identify and characterize the MPs found in water and sediment. The mFTIR (FTIR imaging) is extensively used to study the ingestion of MPs in biota (both marine and freshwater). In this article, we have summarized the current knowledge of application of FTIR spectroscopy to MP research and provided insights to future challenges for understanding the risk of MPs.

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Section: Analytical Methods and Future Challengesmentioning

confidence: 99%

Contributions of Fourier transform infrared spectroscopy in microplastic pollution research: A review

Veerasingam

Ranjani

Venkatachalapathy

et al. 2020

Critical Reviews in Environmental Science and Technology

248

View full text Add to dashboard Cite

show abstract

“…The focus of sample preparation is primarily the destruction and/or removal of the matrix material rather than extraction of the target substance. Sample pre-treatment may range from no treatment (water) or grinding and sieving (compound feed and former food products) to enzyme digestion (soft animal tissues) or acid destruction (plant material and seaweed) [32,73,74]. For more severe treatments the effects on the different types of MPs need to be established.…”

Section: Isolation Of Mpsmentioning

confidence: 99%

“…A range of common polymers like PP, PE, and PET can be identified by this technique. Imaging of areas without any preselection can be applied by using FTIR microscopes with focal plane array (FPA) detectors [73,88]. Automated analysis of images by software can produce information about the identity, number, and sizes of the individual particles [89].…”

Section: Identification Of Mpsmentioning

confidence: 99%

Current Insights into Monitoring, Bioaccumulation, and Potential Health Effects of Microplastics Present in the Food Chain

Raamsdonk

Zande

Koelmans

et al. 2020

Foods

154

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Microplastics (MPs) are considered an emerging issue as environmental pollutants and a potential health threat. This review will focus on recently published data on concentrations in food, possible effects, and monitoring methods. Some data are available on concentrations in seafood (fish, bivalves, and shrimps), water, sugar, salt, and honey, but are lacking for other foods. Bottled water is a considerable source with numbers varying between 2600 and 6300 MPs per liter. Particle size distributions have revealed an abundance of particles smaller than 25 µm, which are considered to have the highest probability to pass the intestinal border and to enter the systemic circulation of mammals. Some studies with mice and zebrafish with short- or medium-term exposure (up to 42 days) have revealed diverse results with respect to both the type and extent of effects. Most notable modifications have been observed in gut microbiota, lipid metabolism, and oxidative stress. The principal elements of MP monitoring in food are sample preparation, detection, and identification. Identified data gaps include a lack of occurrence data in plant- and animal-derived food, a need for more data on possible effects of different types of microplastics, a lack of in silico models, a lack of harmonized monitoring methods, and a further development of quality assurance.

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“…Contamination of samples is a risk to be seriously considered in all steps of MPs studies, and the quality of MPs research has been recently investigated [146][147][148][149][150]. Extensive precautions and a quality assurance perspective to mitigate contamination and validate the data are essential [116,135]. However, the use of blanks and blank correction is still not common in MPs studies; ref.…”

Section: Quality Assurance and Quality Control Of Analysis (Qa/qc)mentioning

confidence: 99%

A Practical Overview of Methodologies for Sampling and Analysis of Microplastics in Riverine Environments

et al. 2020

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Microplastics have recently been stated as being remarkable contaminants of all environmental matrices. The lack of consistent and standardised methods and protocols used to evaluate and quantify microplastics present in riverine systems made a comparison among different studies a critical issue. Based on literature research and the practical expertise of the authors, this work presents a complete collection and analysis of procedures concerning the monitoring of microplastics in riverine environments, focusing on their sampling and analytical protocols to identify, quantify, and characterise them. Further details regarding the advantages and disadvantages of each analytical technique described, such as general recommendations and suggestions, are provided to give practical support for analytical procedures. In particular, microplastics studies consist firstly of their sampling from the aquatic compartment (aqueous and solid phase). Based on the goal of the research, specific devices can be used to collect particles from different matrices. It follows their quantification after extraction from the environmental matrix, adopting different protocols to isolate microplastics from a large amount of organic matter present in a riverine system. In the end, additional qualitative analyses (e.g., RAMAN and FTIR spectroscopy, GC-MS) are required to identify the chemical composition of particles for a better image regarding the abundance of polymer types, their origin, or other information related to manufacturing processes.

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A novel method for purification, quantitative analysis and characterization of microplastic fibers using Micro-FTIR

Cited by 127 publications

References 29 publications

Contributions of Fourier transform infrared spectroscopy in microplastic pollution research: A review

Contributions of Fourier transform infrared spectroscopy in microplastic pollution research: A review

Current Insights into Monitoring, Bioaccumulation, and Potential Health Effects of Microplastics Present in the Food Chain

A Practical Overview of Methodologies for Sampling and Analysis of Microplastics in Riverine Environments

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