一个框架来了解鱼类中表面活性剂的生物度
Michael S McLachlan1, Andrea Ebert2, James M Armitage3
1Department of Environmental Science, Stockholm University, 106 91 Stockholm, Sweden. michael.mclachlan@aces.su.se.
Environmental science. Processes & impacts
|June 23, 2023
概括
一个新的框架预测了鱼类中表面活性剂的生物度,考虑到化学性质和环境pH值. 该工具有助于安全评估和了解水生生物中的化学积累.
科学领域:
- 环境化学环境化学
- 水生毒理学 水生毒理学
- 化学安全评估 化学安全评估
背景情况:
- 表面活性剂被广泛释放到水生环境中,需要进行严格的安全评估.
- 表面活性剂的结构多样性和pH依赖性行为使鱼类的生物度评估复杂化.
研究的目的:
- 开发一种用于鱼类表面活性剂生物度的预测框架.
- 为了考虑化学性质,环境pH值和生理运输限制.
主要方法:
- 开发了一个框架,使用基于生物缩过程的简单方程.
- 绘制了与脂质/水分布比率和不同pH值的中性分数对比的关键生物度参数.
- 识别了跨鱼的运输阻力边界.
主要成果:
- 框架预测与离子,离子和非性表面活性剂的体内测量结果一致.
- 证明了框架在探索表面活性剂子类差异和pH影响方面的实用性.
- 强调该框架能够识别管理运输流程和研究差距的能力.
结论:
- 开发的框架有效地预测了鱼类中表面活性剂的生物度.
- 这种方法有助于评估表面活性剂和类似的电离化化学品对环境的风险.
- 该框架作为了解各种环境污染物的积累潜力的模板.
相关概念视频
01:09Theories of Dissolution: The Danckwerts' Model and Interfacial Barrier Model
348
Various dissolution theories provide insight into the factors that influence the dissolution rate. Danckwerts' Model suggests that turbulence, rather than a stagnant layer, characterizes the dissolution medium at the solid-liquid interface. In this model, the agitated solvent contains macroscopic packets that move to the interface via eddy currents, facilitating the absorption and delivery of the drug to the bulk solution. The regular replenishment of solvent packets maintains the...
348
03:00Solubility
17.6K
Solution, Solubility, and Solubility Equilibrium
A solution is a homogeneous mixture composed of a solvent, the major component, and a solute, the minor component. The physical state of a solution—solid, liquid, or gas—is typically the same as that of the solvent. Solute concentrations are often described with qualitative terms such as dilute (of relatively low concentration) and concentrated (of relatively high concentration).
In a solution, the solute particles (molecules,...
A solution is a homogeneous mixture composed of a solvent, the major component, and a solute, the minor component. The physical state of a solution—solid, liquid, or gas—is typically the same as that of the solvent. Solute concentrations are often described with qualitative terms such as dilute (of relatively low concentration) and concentrated (of relatively high concentration).
In a solution, the solute particles (molecules,...
17.6K