A novel method for extraction, quantification, and identification of microplastics in CreamType of cosmetic products

The objective of this study was to develop an accessible and accurate analysis method for microplastics that have been unintentionally added to cream cosmetic products. An experiment was performed on three cleansing creams in rich and viscous formulations. A spiked sample was prepared by adding poly...

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Bibliographic Details
Published in:Scientific reports 2021-09, Vol.11 (1), p.18074-18074, Article 18074
Main Authors: Lee, Soohyun, Lee, Tai Gyu
Format: Article
Language:English
Subjects:
704/172/169
704/172/4081
Cosmetics
Digestion
Fourier analysis
Fourier transforms
Humanities and Social Sciences
Microplastics
Microspheres
multidisciplinary
n-Hexane
Plastic pollution
Polyethylene
Scanning electron microscopy
Science
Science (multidisciplinary)
Wavelengths
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Summary:The objective of this study was to develop an accessible and accurate analysis method for microplastics that have been unintentionally added to cream cosmetic products. An experiment was performed on three cleansing creams in rich and viscous formulations. A spiked sample was prepared by adding polyethylene (PE) microspheres to the cleansing creams. After removing cosmetic ingredients from the creams using chemical digestion, damage to the PE microspheres was identified using Fourier transform infrared (FT-IR) spectroscopy. Field emission scanning electron microscopy (FE-SEM) images were obtained before and after digestion and used to characterize the morphology of the PE microspheres. The highest digestion efficiency was obtained using a chemical digestion method consisting of heating and stirring a sample in a 10 wt% KOH solution at 55 °C and 300 rpm for 5 days and did not damage the PE microspheres. The Nile red (9-diethylamino-5H-benzo[α]phenoxazine-5-one) staining method was effective in identifying small microplastics (
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-021-97557-0