Validation of a Method for Extracting Microplastics from Complex, Organic-Rich, Environmental Matrices
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F18%3A00106143" target="_blank" >RIV/00216224:14310/18:00106143 - isvavai.cz</a>
Výsledek na webu
<a href="https://pubs.acs.org/doi/10.1021/acs.est.8b01517" target="_blank" >https://pubs.acs.org/doi/10.1021/acs.est.8b01517</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.est.8b01517" target="_blank" >10.1021/acs.est.8b01517</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Validation of a Method for Extracting Microplastics from Complex, Organic-Rich, Environmental Matrices
Popis výsledku v původním jazyce
Complex and organic-rich solid substrates such as sludge and soil have been shown to be contaminated by microplastics; however, methods for extracting plastic particles have not yet been systemically tested or standardized. This study investigated four main protocols for the removal of organic material during analysis of microplastics from complex solid matrices: oxidation using H2O2, Fenton's reagent, and alkaline digestion with NaOH and KOH. Eight common polymer types were used to assess the influence of reagent exposure on particle integrity. Organic matter removal efficiencies were established for test sludge and soil samples. Fenton's reagent was identified as the optimum protocol. All other methods showed signs of particle degradation or resulted in an insufficient reduction in organic matter content. A further validation procedure revealed high microplastic extraction efficiencies for particles with different morphologies. This confirmed the suitability of Fenton's reagent for use in conjunction with density separation for extracting microplastics. This approach affords greater comparability with existing studies that utilize a density-based technique. Recommendations for further method optimization were also identified to improve the recovery of microplastic from complex, organic-rich environmental samples.
Název v anglickém jazyce
Validation of a Method for Extracting Microplastics from Complex, Organic-Rich, Environmental Matrices
Popis výsledku anglicky
Complex and organic-rich solid substrates such as sludge and soil have been shown to be contaminated by microplastics; however, methods for extracting plastic particles have not yet been systemically tested or standardized. This study investigated four main protocols for the removal of organic material during analysis of microplastics from complex solid matrices: oxidation using H2O2, Fenton's reagent, and alkaline digestion with NaOH and KOH. Eight common polymer types were used to assess the influence of reagent exposure on particle integrity. Organic matter removal efficiencies were established for test sludge and soil samples. Fenton's reagent was identified as the optimum protocol. All other methods showed signs of particle degradation or resulted in an insufficient reduction in organic matter content. A further validation procedure revealed high microplastic extraction efficiencies for particles with different morphologies. This confirmed the suitability of Fenton's reagent for use in conjunction with density separation for extracting microplastics. This approach affords greater comparability with existing studies that utilize a density-based technique. Recommendations for further method optimization were also identified to improve the recovery of microplastic from complex, organic-rich environmental samples.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10511 - Environmental sciences (social aspects to be 5.7)
Návaznosti výsledku
Projekt
—
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2018
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
ENVIRONMENTAL SCIENCE & TECHNOLOGY
ISSN
0013-936X
e-ISSN
—
Svazek periodika
52
Číslo periodika v rámci svazku
13
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
9
Strana od-do
7409-7417
Kód UT WoS článku
000438007600026
EID výsledku v databázi Scopus
2-s2.0-85048471716