Comparison of μ-ATR-FTIR spectroscopy and py-GCMS as identification tools for microplastic particles and fibers isolated from river sediments

Käppler, Andrea; Fischer, Marten; Scholz‐Böttcher, Barbara M.; Oberbeckmann, Sonja; Labrenz, Matthias; Fischer, Dieter; Eichhorn, Klaus‐Jochen; Voit, Brigitte

doi:10.1007/s00216-018-1185-5

Cited by 239 publications

(139 citation statements)

References 58 publications

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“…Discoloration indicates that pellets had a higher residence time in the environment [51]. Additionally, Py-GC/MS could also be complementary to FTIR to identified MP in field studies, as recently demonstrated [52]. Indeed, using FTIR polymer signal could be overlap by some plastic additives included and identification could be disturbed [53,54].…”

Section: Limit Of Detectionmentioning

confidence: 90%

Optimization, performance, and application of a pyrolysis-GC/MS method for the identification of microplastics

et al. 2018

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Plastics are found to be major debris composing marine litter; microplastics (MP, < 5 mm) are found in all marine compartments. The amount of MPs tends to increase with decreasing size leading to a potential misidentification when only visual identification is performed. These last years, pyrolysis coupled with gas chromatography/mass spectrometry (Py-GC/MS) has been used to get information on the composition of polymers with some applications on MP identification. The purpose of this work was to optimize and then validate a Py-GC/MS method, determine limit of detection (LOD) for eight common polymers, and apply this method on environmental MP. Optimization on multiple GC parameters was carried out using polyethylene (PE) and polystyrene (PS) microspheres. The optimized Py-GC/MS method require a pyrolysis temperature of 700 °C, a split ratio of 5 and 300 °C as injector temperature. Performance assessment was accomplished by performing repeatability and intermediate precision tests and calculating limit of detection (LOD) for common polymers. LODs were all below 1 μg. For performance assessment, identification remains accurate despite a decrease in signal over time. A comparison between identifications performed with Raman micro spectroscopy and with Py-GC/MS was assessed. Finally, the optimized method was applied to environmental samples, including plastics isolated from sea water surface, beach sediments, and organisms collected in the marine environment. The present method is complementary to μ-Raman spectroscopy as Py-GC/MS identified pigment containing particles as plastic. Moreover, some fibers and all particles from sediment and sea surface were identified as plastic. Graphical abstract ᅟ.

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Section: Limit Of Detectionmentioning

confidence: 90%

Optimization, performance, and application of a pyrolysis-GC/MS method for the identification of microplastics

et al. 2018

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“…Analysis should be automated where feasible to reduce costs and accelerate sample throughput. To date, researchers in the field have utilized different techniques for extraction from environmental matrices (Fuller & Gautam, ; Hurley, Lusher, et al, ; Hurley, Woodward, et al, ; Wagner et al, ) and for polymer identification (Fries et al, ; Käppler et al, ; Mintenig et al, ). Differences in method effectiveness make comparison of data between studies more difficult.…”

Section: The Nature Of Plastics and Microplasticsmentioning

confidence: 99%

“…Fluorescence may also be used to prescreen targets for further micro FTIR or Raman investigation (e.g., Maes et al, ). Finally, destructive techniques such as pyrolysis‐GC/MS can be employed, whereby microplastic(s) is vaporized at between 600 and 700 °C and resulting components chromatographically separated and identified by mass spectrometry (Käppler et al, ). However, destructive techniques such as this do not allow evaluation of particle shape and size.…”

Section: The Nature Of Plastics and Microplasticsmentioning

confidence: 99%

A Global Perspective on Microplastics

Hale¹,

Seeley²,

Guardia³

et al. 2020

JGR Oceans

733

270

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Society has become increasingly reliant on plastics since commercial production began in about 1950. Their versatility, stability, light weight, and low production costs have fueled global demand. Most plastics are initially used and discarded on land. Nonetheless, the amount of microplastics in some oceanic compartments is predicted to double by 2030. To solve this global problem, we must understand plastic composition, physical forms, uses, transport, and fragmentation into microplastics (and nanoplastics). Plastic debris/microplastics arise from land disposal, wastewater treatment, tire wear, paint failure, textile washing, and at-sea losses. Riverine and atmospheric transport, storm water, and disasters facilitate releases. In surface waters plastics/microplastics weather, biofoul, aggregate, and sink, are ingested by organisms and redistributed by currents. Ocean sediments are likely the ultimate destination. Plastics release additives, concentrate environmental contaminants, and serve as substrates for biofilms, including exotic and pathogenic species. Microplastic abundance increases as fragment size decreases, as does the proportion of organisms capable of ingesting them. Particles <20 μm may penetrate cell membranes, exacerbating risks. Exposure can compromise feeding, metabolic processes, reproduction, and behavior. But more investigation is required to draw definitive conclusions. Human ingestion of contaminated seafood and water is a concern. Microplastics indoors present yet uncharacterized risks, magnified by the time we spend inside (>90%) and the abundance of polymeric products therein. Scientific challenges include improving microplastic sampling and characterization approaches, understanding long-term behavior, additive bioavailability, and organismal and ecosystem health risks. Solutions include improving globally based pollution prevention, developing degradable polymers and additives, and reducing consumption/expanding plastic reuse.

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“…22 A recent study compared the performances of micro-ATR-FTIR and GC-MS as identifying tools for micro-plastics and bers isolated from different water sources. 23 Therefore, this paper describes the application of ATR-FTIR in combination with a PLSR chemometric tool for the determination of the doping drugs BAM and TER. Low detection limits were obtained due to the high selectivity, sensitivity, portability, high throughput analysis, and straightforward nondestructive direct determination capabilities of PLSR/ATR-FTIR.…”

Section: Introductionmentioning

confidence: 99%

Chemical fingerprinting and quantitative monitoring of the doping drugs bambuterol and terbutaline in human urine samples using ATR-FTIR coupled with a PLSR chemometric tool

et al. 2020

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Comparison of μ-ATR-FTIR spectroscopy and py-GCMS as identification tools for microplastic particles and fibers isolated from river sediments

Cited by 239 publications

References 58 publications

Optimization, performance, and application of a pyrolysis-GC/MS method for the identification of microplastics

Optimization, performance, and application of a pyrolysis-GC/MS method for the identification of microplastics

A Global Perspective on Microplastics

Chemical fingerprinting and quantitative monitoring of the doping drugs bambuterol and terbutaline in human urine samples using ATR-FTIR coupled with a PLSR chemometric tool

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