التفاصيل البيبلوغرافية
| العنوان: |
Validation of Sample Preparation Methods for Microplastic Analysis in Wastewater Matrices—Reproducibility and Standardization |
| المؤلفون: |
Mohammed S. M. Al-Azzawi, Simone Kefer, Jana Weißer, Julia Reichel, Christoph Schwaller, Karl Glas, Oliver Knoop, Jörg E. Drewes |
| المصدر: |
Water; Volume 12; Issue 9; Pages: 2445 |
| بيانات النشر: |
Multidisciplinary Digital Publishing Institute |
| سنة النشر: |
2020 |
| المجموعة: |
MDPI Open Access Publishing |
| مصطلحات موضوعية: |
microplastics, wastewater, Fenton reaction, hydrogen peroxide, digestion methods, sample preparation |
| جغرافية الموضوع: |
agris |
| الوصف: |
There is a growing interest in monitoring microplastics in the environment, corresponding to increased public concerns regarding their potential adverse effects on ecosystems. Monitoring microplastics in the environment is difficult due to the complex matrices that can prevent reliable analysis if samples are not properly prepared first. Unfortunately, sample preparation methods are not yet standardized, and the various efforts to validate them overlook key aspects. The goal of this study was to develop a sample preparation method for wastewater samples, which removes natural organic matter without altering the properties of microplastics. Three protocols, based on KOH, H2O2, and Fenton reactions, were chosen out of ten protocols after a literature review and pre-experiments. In order to investigate the effects of these reagents on seven polymers (PS, PE, PET, PP, PA, PVC, and PLA), this study employed µFTIR, laser diffraction-based particle size analysis, as well as TD-Pyr-GC/MS. Furthermore, the study discussed issues and inconsistencies with the Fenton reactions reported in the literature in previous validation efforts. The findings of this study suggest that both H2O2 and Fenton reactions are most effective in terms of organic matter removal from microplastic samples while not affecting the tested polymers, whereas KOH dissolved most PLA and PET particles. |
| نوع الوثيقة: |
text |
| وصف الملف: |
application/pdf |
| اللغة: |
English |
| العلاقة: |
Water Quality and Contamination; https://dx.doi.org/10.3390/w12092445Test |
| DOI: |
10.3390/w12092445 |
| الإتاحة: |
https://doi.org/10.3390/w12092445Test |
| حقوق: |
https://creativecommons.org/licenses/by/4.0Test/ |
| رقم الانضمام: |
edsbas.120F419D |
| قاعدة البيانات: |
BASE |
