A Nanoplastic Sampling and Enrichment Approach by Continuous Flow Centrifugation
| Autor: | Lars Hildebrandt, Denise M. Mitrano, Tristan Zimmermann, Daniel Pröfrock |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
lcsh:GE1-350
Chromatography 010504 meteorology & atmospheric sciences Chemistry Metal-doped nanoplastic Nanoplastic sampling Nanoplastic separation Nanoplastic enrichment Submicrometer plastic Plastic contaminants Particulate plastic Sampling (statistics) Fraction (chemistry) 010501 environmental sciences Particulates Contamination 01 natural sciences nanoplastic sampling Colloid nanoplastic separation plastic contaminants Continuous flow centrifugation nanoplastic enrichment submicrometer plastic Effluent lcsh:Environmental sciences 0105 earth and related environmental sciences General Environmental Science Centrifuge rotor metal-doped nanoplastic |
| Zdroj: | Frontiers in Environmental Science, Vol 8 (2020) Hildebrandt, L.; Mitrano, D.; Zimmermann, T.; Pröfrock, D.: A Nanoplastic Sampling and Enrichment Approach by Continuous Flow Centrifugation. In: Frontiers in Environmental Science. Vol. 8 (2020) 89. (DOI: /10.3389/fenvs.2020.00089) Frontiers in Environmental Science, 8 |
| ISSN: | 2296-665X |
| Popis: | Substantial efforts have been undertaken to isolate and characterize plastic contaminants in different sample matrices in the last years as the ubiquitous presence of particulate plastic in the environment has become evident. In comparison, plastic particles 90%. In a proof-of-principle setup, it was demonstrated that operating two continuous flow centrifuges sequentially at different rotational speeds bears the potential to enable size- and density-selective sampling of the colloidal fraction. A significant fraction of the spiked nanoplastic particles [76% ± 5% (uc)] could be separated from a model mixture of natural particles with a well-defined mean size of approximately 3 µm. While the certified reference plankton material used here was quantitatively retained in the first centrifuge rotor together with 23.0% ± 2.2% of the effective dose of the spiked nanoplastic, the remaining fraction of the nanoplastic could be recovered in the second rotor (53% ± 5%) and the effluent [24.4% ± 2.4% (uc)]. Based on the good retention efficiencies and the demonstrated separation potential, continuous flow centrifugation has proven to be a very promising technique for nanoplastic sampling and enrichment from natural water samples. Frontiers in Environmental Science, 8 ISSN:2296-665X |
| Databáze: | OpenAIRE |
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