用拉曼显微光谱学研究水中PET的微塑料数量度案例研究的参考材料
Oliver Jacob1, Elżbieta Anna Stefaniak2, John Seghers2
1Institute of Water Chemistry, Chair of Analytical Chemistry and Water Chemistry, Technical University of Munich, Lichtenbergstr. 4, 85748, Garching, Germany.
Analytical and bioanalytical chemistry
|March 28, 2024
概括
为水中的聚乙烯二甲 (PET) 微塑料开发了一种新的参考材料 (RM). 这个RM证明了足够的同质性和稳定性,用于验证微塑料量化方法.
科学领域:
- 环境科学 环境科学
- 分析化学 分析化学
- 材料科学 材料科学 材料科学
背景情况:
- 精确识别和量化水样中的微塑料至关重要.
- 微塑料分析的方法验证依赖于认证的参考材料 (CRM).
研究的目的:
- 评估新开发的聚乙烯二甲 (PET) 微塑料在水候选参考材料 (RM) 中的适用性.
- 为了确定候选RM内的微塑料颗粒数度的均性和稳定性.
主要方法:
- 利用拉曼显微光谱技术进行粒子识别和量化.
- 使用自动化粒子计数和分析软件 (TUM-ParticleTyper 2).
- 在多个RM单元中评估粒子数度和大小分布.
主要成果:
- 候选RM在PET微塑料颗粒数 (>30μm) 方面表现为均,相对标准偏差为12%.
- 在所有测试的RM单位中,总颗粒数和特定大小类内的颗粒数是可比的.
- 在微塑料RM中证明了颗粒数度的稳定性.
结论:
- 在水RM中开发的PET微塑料足够均和稳定.
- 这种RM适用于验证微塑料分析中使用的方法.
- 促进环境和饮用水样本中微塑料的可靠的尺寸解析识别和量化.
更多相关视频
05:48Sampling, Identification and Characterization of Microplastics Release from Polypropylene Baby Feeding Bottle during Daily Use
Published on: July 24, 2021
5.6K
05:05Quantification of Polybutylene Adipate Terephthalate-based Micro- and Nano-plastics from Soil Using Proton Nuclear Magnetic Resonance Spectroscopy
Published on: June 6, 2025
61
相关概念视频
Raman Spectroscopy: Overview
The underlying principle of Raman spectroscopy is based on the interaction between light and matter, specifically molecules' inelastic scattering of photons. When a monochromatic beam of light, typically from a laser source, interacts with a sample, most scattered light has the same frequency as the incident light. This is known as Rayleigh scattering.
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and the...
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and the...
Microbial Bioremediation of Plastics
Polyethylene terephthalate (PET) is a synthetic polymer widely utilized in the packaging industry, particularly for bottles and containers. Due to its chemical stability and durability, PET accumulates in the environment, contributing significantly to plastic pollution. It comprises repeating units of terephthalic acid and ethylene glycol, resulting in a semi-crystalline structure that is resistant to natural degradation processes.A notable breakthrough in plastic biodegradation came with the...
