纳米塑料的尺寸可分类量化通过率区域离心加上 pyrolysis-gas 染色学-质谱学

Siyuan Jing1, Yanting Wang2, Jiaying Zheng3

  • 1Department of Environmental Science and Engineering, Fudan University, 200433, Shanghai, China; Sustainable Agricultural Systems & Engineering Lab, School of Engineering, Westlake University, 310024, Hangzhou, Zhejiang Province, China; Key Laboratory of Coastal Environment and Resources of Zhejiang Province, School of Engineering, Westlake University, 18 Shilongshan Road, 310024, Hangzhou, Zhejiang Province, China.

PubMed
概括

这项研究引入了一种新的方法来分离和量化纳米塑料 (NP) 在水中的尺寸. 速率带离心技术与其他技术相结合,有效地分析了NP粒子大小,有助于环境风险评估.

相关概念视频

Determination of Molar Masses of Polymers I01:24

Determination of Molar Masses of Polymers I

Polymerization produces macromolecules with a range of chain lengths due to the random nature of molecular growth processes. As chains form and terminate at different stages, a single polymer sample contains molecules of varying sizes rather than a uniform structure. This variability is described using average molar masses and distribution-related parameters, which together provide a comprehensive understanding of polymer characteristics.The distribution of molar masses plays a critical role in...
Microbial Bioremediation of Plastics01:28

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...
Determination of Molar Masses of Polymers II01:27

Determination of Molar Masses of Polymers II

Polymer samples typically consist of macromolecular chains with a distribution of lengths, resulting in a range of molar masses rather than a single discrete value. Conventional descriptors such as the number-average molar mass and weight-average molar mass quantify this distribution but do not fully capture polymer behavior in solution..The viscosity-average molar mass provides a more realistic description of polymer behavior in solution because it accounts for the enhanced contribution of...