distribution coefficient

简明释义

配分系数

英英释义

例句

1.A high distribution coefficient indicates that a compound is more soluble in organic solvents than in water.

高的分配系数表明化合物在有机溶剂中的溶解度高于水中。

2.Chemists often calculate the distribution coefficient to determine the effectiveness of extraction processes.

化学家通常计算分配系数以确定提取过程的有效性。

3.In drug formulation, the distribution coefficient helps predict the absorption of the drug in the body.

在药物制剂中，分配系数有助于预测药物在体内的吸收情况。

4.The distribution coefficient is crucial for understanding how a substance partitions between two phases.

在理解物质如何在两个相之间分配时，分配系数是至关重要的。

5.To optimize environmental remediation, the distribution coefficient of pollutants must be measured.

为了优化环境修复，必须测量污染物的分配系数。

作文

The concept of the distribution coefficient is fundamental in the fields of chemistry and environmental science. It refers to the ratio of the concentration of a substance in one phase to its concentration in another phase at equilibrium. This measurement is crucial when assessing how substances partition between different environments, such as air, water, and soil. Understanding the distribution coefficient helps scientists predict the behavior of pollutants and their potential impact on ecosystems. For instance, if a chemical has a high distribution coefficient, it indicates that the substance prefers to remain in one phase over another, which can inform risk assessments for environmental contamination.In practical applications, the distribution coefficient can be used to evaluate the efficacy of pharmaceuticals. When developing new drugs, researchers must consider how these compounds distribute within the body. A favorable distribution coefficient might suggest that a drug can effectively reach its target tissues while minimizing side effects. This understanding can lead to better therapeutic outcomes and safer medications.Moreover, the distribution coefficient plays a significant role in the field of analytical chemistry. Techniques such as liquid-liquid extraction rely on the differences in the distribution coefficient of analytes between two immiscible solvents. By optimizing the conditions based on the distribution coefficient, chemists can enhance the separation and purification processes of complex mixtures.Additionally, the distribution coefficient is essential in environmental modeling. Scientists use it to predict the fate and transport of contaminants in various media. For example, in groundwater studies, the distribution coefficient can help determine how far a pollutant might spread and how long it will persist in the environment. This information is vital for developing remediation strategies to clean up contaminated sites effectively.In conclusion, the distribution coefficient is a key parameter that influences the behavior of substances across different phases. Its applications span from drug development to environmental protection, highlighting its importance in both scientific research and practical applications. As we continue to face environmental challenges and strive for advancements in medicine, a thorough understanding of the distribution coefficient will remain critical in guiding our efforts towards sustainable solutions and improved health outcomes.

分配系数的概念在化学和环境科学领域是基础性的。它指的是在平衡状态下，某一物质在一个相中的浓度与在另一个相中的浓度之比。这一测量对于评估物质在不同环境（如空气、水和土壤）之间的分配至关重要。理解分配系数有助于科学家预测污染物的行为及其对生态系统的潜在影响。例如，如果一种化学物质具有高分配系数，这表明该物质更倾向于留在一个相中而不是另一个相，这可以为环境污染的风险评估提供信息。在实际应用中，分配系数可以用于评估药物的有效性。在开发新药时，研究人员必须考虑这些化合物在体内的分布情况。一个理想的分配系数可能表明一种药物能够有效到达其靶组织，同时最小化副作用。这种理解可以导致更好的治疗结果和更安全的药物。此外，分配系数在分析化学领域也发挥着重要作用。液-液萃取等技术依赖于分析物在两种不混溶溶剂之间的分配系数的差异。通过根据分配系数优化条件，化学家可以增强复杂混合物的分离和纯化过程。另外，分配系数在环境建模中也是必不可少的。科学家利用它来预测污染物在各种介质中的命运和迁移。例如，在地下水研究中，分配系数可以帮助确定污染物可能扩散的距离以及在环境中持续的时间。这些信息对于制定有效的修复策略以清理受污染地点至关重要。总之，分配系数是影响物质在不同相中行为的关键参数。它的应用范围从药物开发到环境保护，突显了它在科学研究和实际应用中的重要性。随着我们继续面临环境挑战并努力实现医学进步，全面理解分配系数将继续在指导我们朝向可持续解决方案和改善健康结果的努力中发挥关键作用。