从环境土壤样本中提取微塑料的化可行性
Kyle Forsythe1, Mason Egermeier1, Marcus Garcia2
1School of Civil and Environmental Engineering, Oklahoma State University Stillwater OK USA +1405-744-8257 jorgego@okstate.edu.
Environmental science. Advances
|July 3, 2024
概括
化有效地减少了用于微塑料提取的土壤质量,改善了聚合物识别. 这种方法提高了在淡水和陆地土壤中检测微塑料的准确度和灵敏度.
科学领域:
- 环境科学 环境科学
- 分析化学 分析化学
- 土壤科学 土壤科学
背景情况:
- 微塑料污染是各种生态系统中日益关注的问题.
- 现有的从土壤中提取微塑料的方法有局限性.
- 化是一种经过验证的海洋沉积物微塑料提取技术.
研究的目的:
- 评估化是否适合从淡水和陆地土壤中提取微塑料.
- 为了比较微塑料提取效率与没有化.
- 评估化对样本质量减少和随后分析的影响.
主要方法:
- 五个不同的俄克拉荷马州土壤被采样.
- 微塑料的提取进行了和没有化.
- 样品经过消化 (7.5% NaOCl) 和浮化 (6 M ZnCl2).
- 分析包括光成像,ImageJ粒子计数,ATR-FTIR和py-GC/MS.
主要成果:
- 在所有土壤中,化显著减少了样本质量 (59.0-97.3%).
- 在化和非化样本之间,颗粒量或聚合物质量没有显著差异.
- 在化样本中,ATR-FTIR检测出了33%更多的聚合物.
- 没有观察到聚合物或尺寸分布的差异.
结论:
- 化是土壤微塑料提取的合适和有效的预处理方法.
- 从化减少的质量可以处理更大的体积,提高检测精度和灵敏度.
- 建议在土壤样本中进行化以进行增强的微塑料分析.
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