eluent

简明释义

英[ˈeljuːənt]美[ˈeljʊənt]

n. 洗脱液；洗提液

英英释义

单词用法

同义词

反义词

例句

1.The complexes formed in organic solvent, aqueous and micellar solution are injected into chromatographic system or the metal ions are injected into the eluent containing the chelating agent.

在有机相、水相和胶束相中形成的络合物可直接注入到色谱系统，或是将金属离子溶液注入到含有络合剂的流动相中。

2.In this paper, oligosaccharides in soybean flour were determined by HPLC on an ODS column, using pure water as eluent.

本文用ODS柱，以纯水为洗脱液，高效液相色谱法(HPLC)测定了大豆粉中的低聚糖。

3.Then the eluent which got from above conditions was dehydrogenized by vacuum freezing drying method, the tan powder of BLF was collected.

在此条件下得到的洗脱液再采用真空冷冻干燥的方法，得到竹叶黄酮的黄褐色粉末。

4.Retention behavior of alkali metals, ammonium ion and alkyl amines on a sulfonic cation-exchange resin column with organic acid and inorganic acid as eluent was studied.

系统研究了碱金属、铵离子和烷基胺在磺酸型阳离子交换树脂柱上以有机酸和无机酸为淋洗液的保留行为。

5.The eluent is changed in a regular manner starting with a nonpolar solvent and gradually replacing it by a more polar one.

洗脱液以常规的顺序更换，首先用非极性溶剂，然后逐步被极性较强的所替换。

6.Objective to study the influence of eluent of different polarity on triptolide content.

目的研究不同极性洗脱液对雷公藤内酯醇含量的影响。

7.After the methanol phase extracted from pulp is treated by pocket resin, 50% alcohol eluent inhibitory is strongest.

果肉甲醇相上大孔树脂后，以50%的乙醇洗脱液的抑制作用最强。

8.In chromatography, the choice of eluent is crucial for achieving optimal separation of compounds.

在色谱分析中，洗脱剂的选择对于实现化合物的最佳分离至关重要。

9.The eluent used in this experiment was a mixture of methanol and water.

本实验中使用的洗脱剂是甲醇和水的混合物。

10.Adjusting the flow rate of the eluent can significantly impact the resolution of the chromatographic peaks.

调整洗脱剂的流速可以显著影响色谱峰的分辨率。

11.In HPLC, the eluent must be filtered to remove any particulates that could clog the system.

在高效液相色谱中，洗脱剂必须经过过滤，以去除可能堵塞系统的颗粒物。

12.The purity of the eluent can affect the accuracy of the analytical results.

洗脱剂的纯度会影响分析结果的准确性。

作文

In the field of chemistry, particularly in chromatography, the term eluent refers to the solvent that is used to carry the components of a mixture through a medium. Understanding the role of the eluent is crucial for anyone involved in analytical chemistry or laboratory work. The choice of eluent can significantly affect the separation and analysis of compounds, making it a vital aspect of the chromatographic process. Chromatography is a technique widely used for separating mixtures into their individual components. This process relies on the interaction between the stationary phase and the mobile phase. The stationary phase is typically a solid or a liquid that stays fixed in place, while the mobile phase, which is where the eluent comes into play, moves through the stationary phase. The eluent can be a single solvent or a mixture of solvents, and its properties, such as polarity, viscosity, and pH, can influence how well the components are separated. When selecting an appropriate eluent, chemists must consider the nature of the compounds they wish to separate. Different compounds will interact differently with the eluent and the stationary phase. For example, a polar eluent may be more effective for separating polar compounds, while a non-polar eluent might be better suited for non-polar substances. This selection process is critical because the wrong choice can lead to poor resolution and inaccurate results. Moreover, the strength of the eluent can also vary. A stronger eluent will elute (or carry away) the components more quickly, whereas a weaker eluent may allow for better separation but take longer to complete the process. This balance between speed and resolution is something that chemists must navigate carefully during experiments. In practical applications, the choice of eluent is often guided by empirical data and previous studies. Many laboratories maintain a database of successful separations, which includes information about the eluent used, the conditions of the experiment, and the results obtained. By consulting this data, chemists can make informed decisions about which eluent to use for their specific needs. Additionally, advancements in technology have provided new opportunities for optimizing eluent selection. High-performance liquid chromatography (HPLC), for example, allows for the precise control of flow rates and temperatures, which can further refine the effectiveness of the eluent. As research continues, new eluents and combinations are being developed, expanding the possibilities for compound separation in various fields, including pharmaceuticals, environmental science, and food safety. In conclusion, the term eluent is fundamental in chromatography and plays a crucial role in the separation and analysis of chemical compounds. Understanding its properties and effects is essential for achieving accurate and reliable results in laboratory work. As the field of chemistry evolves, the role of the eluent will undoubtedly continue to be a significant area of focus, driving innovation and improving analytical techniques. Whether for academic research or industrial applications, mastering the concept of eluent is vital for any aspiring chemist.

在化学领域，尤其是色谱分析中，术语eluent指的是用于通过介质携带混合物成分的溶剂。理解eluent的作用对于任何参与分析化学或实验室工作的人来说都是至关重要的。eluent的选择可以显著影响化合物的分离和分析，因此它是色谱过程中的一个重要方面。 色谱是一种广泛用于将混合物分离为其各个成分的技术。该过程依赖于固定相和流动相之间的相互作用。固定相通常是保持不变的固体或液体，而流动相则是移动的介质，这时eluent就发挥了作用。eluent可以是单一溶剂或溶剂的混合物，其性质，如极性、粘度和pH值，会影响成分的分离效果。 在选择合适的eluent时，化学家必须考虑他们希望分离的化合物的性质。不同的化合物会与eluent和固定相产生不同的相互作用。例如，极性的eluent可能更有效地分离极性化合物，而非极性的eluent可能更适合分离非极性物质。这一选择过程至关重要，因为错误的选择可能导致分辨率差和结果不准确。 此外，eluent的强度也可能有所不同。较强的eluent会更快地洗脱（或带走）成分，而较弱的eluent则可能允许更好的分离但需要更长时间才能完成该过程。化学家在实验过程中必须谨慎平衡速度与分辨率。 在实际应用中，eluent的选择通常受到经验数据和先前研究的指导。许多实验室维护着成功分离的数据库，其中包括所用eluent的信息、实验条件和获得的结果。通过查阅这些数据，化学家可以对其特定需求做出明智的eluent选择。 此外，技术的进步为优化eluent的选择提供了新的机会。例如，高效液相色谱（HPLC）允许精确控制流速和温度，这可以进一步提高eluent的有效性。随着研究的继续，新的eluent和组合正在不断开发，扩展了在制药、环境科学和食品安全等各个领域化合物分离的可能性。 总之，术语eluent在色谱中是基础，并在化学化合物的分离和分析中发挥着至关重要的作用。理解其性质和影响对实现实验室工作的准确和可靠结果至关重要。随着化学领域的发展，eluent的角色无疑将继续成为一个重要的关注领域，推动创新并改善分析技术。无论是学术研究还是工业应用，掌握eluent的概念对于任何有志于成为化学家的人员都是至关重要的。