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| Research on Detection Methods for Microplastics in Bivalve Marine Organisms Based on Microspectroscopy |
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| DOI： |
| KeyWord:microplastics bivalves spectroscopy analytical method |
| Author | Institution |
| HE Yu-tian，YANG Jie，SUI Hai-xia，DU Zhen-xia，SONG Yan |
1. College of Chemistry， Beijing University of Chemical Technology， Beijing ， China; 2. China National Center for Food Safety Risk Assessment， Beijing ， China |
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| Abstract: |
| Establishment of an accurate and efficient analytical method is the precondition to elaborate the mechanism of migration， transformation， fate and ecotoxicological effects of microplastics in the environment. The sample pre-processing methods， including four conditions of digestion and filter options were explored systematically in this paper， as well as the micro-infrared and Raman microscopy to detect microplastics. And it is the best digestion method using potassium hydroxide at 40 ℃ for 36 h and filter with mixed cellulose filter membrane. Based on research， the micro-infrared ATR， imaging mode and micro-Raman single-point detection mode could be used for detection when the microplastic particles are large， while the micro-Raman single-point detection mode or the imaging mode of micro-Raman and micro-infrared could be used for detection when the particles are small. Through the analysis of microplastics in typical bivalve marine organisms， the spectroscopic methods for microplastics detection were systematically explored in this paper. |
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