isocratic

简明释义

英[ˌaɪsəʊˈkrætɪk]美[ˌaɪsəˈkrætɪk]

adj. 权力平等主义的

英英释义

单词用法

同义词

反义词

例句

1.This isocratic system consists of a high pressure solvent delivery pump, an UV/VIS detector, a manual injection valve, and a solvent tray, a column and a Chromatography Workstation.

整套系统由高压输液泵、检测器、进样阀、溶剂托盘、色谱柱、工作站软件等组成；

2.The reactions were carried out in an isocratic reactor and an oil bath fixed bed reactor, which are designed by us.

反应是在实验室自行设计的无梯度反应器和油浴固定床反应器中进行。

3.Diastereomers of cinchonine and cinchonidine were fully separated both under isocratic and gradient elutions on the chiral monolithic column.

在等度及梯度洗脱条件下，非对映异构体辛可宁与辛可尼丁被完全分离。

4.This isocratic system consists of a high pressure solvent delivery pump, an UV/VIS detector, a manual injection valve, and a solvent tray, a column and a Chromatography Workstation.

整套系统由高压输液泵、检测器、进样阀、溶剂托盘、色谱柱、工作站软件等组成；

5.Then, I use another 10-min gradient to reequilibrate from the final conditions back to the initial conditions, followed by 8 min of isocratic hold.

然后，我用另外10分钟的梯度把最终的条件重新平衡到初始的条件，接着保持8分钟等度洗脱。

6.In chromatography, an isocratic 等度 method maintains a constant solvent composition throughout the separation process.

在色谱分析中，一种等度的isocratic方法在整个分离过程中保持溶剂成分不变。

7.The isocratic 等度 approach is often preferred for the separation of closely related compounds.

对于分离结构相近的化合物，通常更喜欢使用等度的isocratic方法。

8.The laboratory opted for an isocratic 等度 elution to simplify the analysis of the samples.

实验室选择了一个等度的isocratic洗脱以简化样品的分析。

9.An isocratic 等度 run can be beneficial when analyzing stable compounds that do not require gradient conditions.

当分析不需要梯度条件的稳定化合物时，进行等度的isocratic运行是有益的。

10.Using an isocratic 等度 mobile phase can lead to more reproducible results in HPLC experiments.

使用等度的isocratic流动相可以在HPLC实验中获得更具可重复性的结果。

作文

In the field of chemistry and analytical science, the term isocratic refers to a specific type of chromatography technique where the mobile phase composition remains constant throughout the separation process. This method contrasts with gradient elution techniques, where the composition of the mobile phase changes over time. Understanding the principles behind isocratic chromatography is essential for researchers and analysts who aim to achieve consistent and reproducible results in their experiments.The isocratic method is particularly beneficial when separating compounds with similar properties or when working with samples that require a stable environment to avoid degradation. For instance, in high-performance liquid chromatography (HPLC), an isocratic setup can provide clarity and precision when analyzing complex mixtures. By maintaining a constant solvent ratio, the analyst can focus on the interaction between the stationary phase and the analytes, leading to improved resolution and peak shapes in chromatograms.One of the significant advantages of using an isocratic approach is its simplicity. Since the mobile phase does not change, the method is easier to set up and operate, making it ideal for routine analyses in laboratories. Additionally, isocratic conditions often result in shorter run times compared to gradient methods, which can be advantageous when dealing with a high volume of samples.However, isocratic chromatography is not without its limitations. It may not be suitable for all types of samples, particularly those with a wide range of polarities or molecular weights. In such cases, a gradient elution might be necessary to achieve optimal separation. Therefore, researchers must carefully consider the nature of their samples and the goals of their analysis when deciding whether to use an isocratic or gradient approach.In conclusion, the concept of isocratic chromatography plays a vital role in the analytical chemistry landscape. Its straightforward methodology and efficiency make it a popular choice for many laboratory applications. As scientists continue to explore new compounds and develop innovative techniques, the understanding of isocratic processes will remain crucial for achieving reliable and accurate results. Thus, mastering the intricacies of isocratic chromatography is essential for anyone involved in chemical analysis and research, paving the way for advancements in various scientific fields.

在化学和分析科学领域，术语isocratic指的是一种特定的色谱技术，其中流动相的组成在分离过程中保持不变。这种方法与梯度洗脱技术形成对比，后者在时间上改变流动相的组成。理解isocratic色谱法背后的原理对于希望在实验中实现一致和可重复结果的研究人员和分析师至关重要。isocratic方法在分离具有相似特性的化合物或处理需要稳定环境以避免降解的样本时特别有益。例如，在高效液相色谱（HPLC）中，isocratic设置可以在分析复杂混合物时提供清晰度和精确度。通过保持恒定的溶剂比例，分析师可以专注于固定相与分析物之间的相互作用，从而提高色谱图中的分辨率和峰形。使用isocratic方法的一个显著优势是其简单性。由于流动相不发生变化，该方法更易于设置和操作，非常适合实验室中的常规分析。此外，isocratic条件通常导致比梯度方法更短的运行时间，这在处理大量样本时是有利的。然而，isocratic色谱法并非没有局限性。它可能不适用于所有类型的样本，尤其是那些具有广泛极性或分子量的样本。在这种情况下，可能需要梯度洗脱以实现最佳分离。因此，研究人员在决定使用isocratic还是梯度方法时，必须仔细考虑样本的性质和分析目标。总之，isocratic色谱法的概念在分析化学领域发挥着至关重要的作用。其直接的方法论和效率使其成为许多实验室应用的热门选择。随着科学家们继续探索新化合物并开发创新技术，对isocratic过程的理解将始终是实现可靠和准确结果的关键。因此，掌握isocratic色谱法的复杂性对于任何参与化学分析和研究的人来说都是必不可少的，为各个科学领域的进步铺平了道路。