通过微拉曼光谱法确定微塑料度的杯子方法
Zijiang Yang1, Hisayuki Arakawa1
1Department of Ocean Sciences, Tokyo University of Marine Science and Technology, Konan 4-5-7, Minato-Ku, Tokyo 108-8477, Japan.
MethodsX
|July 14, 2023
概括
与FT-IR相比,拉曼光谱为测量水中的小微塑料 (SMP) 提供了更快的方法. 一种新方法使用拉曼光谱直接估计SMP度,简化了海洋监测.
科学领域:
- 环境科学 环境科学
- 分析化学 分析化学
- 频谱学是一种光谱学.
背景情况:
- 对于小型微塑料 (SMP) 分析的富里埃变换红外 (FT-IR) 光谱学受到耗时的样本准备工作的阻碍.
- 拉曼光谱由于其耐水性和SMPs的直接测量能力而提供了一个替代方案.
研究的目的:
- 开发一种直接方法,使用拉曼光谱来估计水生环境中的小微塑料度.
- 为了建立拉曼光谱数据和微塑料度之间的定量关系.
主要方法:
- 使用拉曼光谱学直接测量水中的小微塑料样本.
- 建立光谱数据与标准聚乙烯 (PE) 样本已知度之间的相关性.
- 对获得的光谱进行基线校正,以揭示特征性塑料峰值.
主要成果:
- 水溶液中的平均拉曼光谱有效地代表了基线后的塑料特征.
- 在光谱相关系数和PE粒子度之间发现了显著的功能关系.
- 这种关系是成功地用Langmuir模型建模的.
结论:
- 开发的经验功能关系使得从平均拉曼光谱中直接估计小微塑料度.
- 该方法支持开发用于在海洋环境中识别和监测微塑料的快速和高效方法.
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