fractionate

简明释义

英[ˈfrækʃəneɪt]美[ˈfrækʃənˌeɪt]

v. 把……分成几部分；分馏，用分馏法取得

第 三 人 称 单 数 f r a c t i o n a t e s

现 在 分 词 f r a c t i o n a t i n g

过 去 式 f r a c t i o n a t e d

过 去 分 词 f r a c t i o n a t e d

英英释义

单词用法

同义词

反义词

例句

1.Objective to fractionate mouse liver phosphoproteome by two-dimensional liquid chromatography.

目的利用二维液相色谱法分离小鼠肝脏磷酸化蛋白质组。

2.Velocity and isopyknic gradient centrifugation was employed to fractionate rat myocardial nuclei.

大鼠心肌细胞核采用差速离心和密度梯度离心分离提纯。

3.Ulrafilration is used widely to concentrate and fractionate milk prior to cheese production and to separate whey proteins from whey .

超滤广泛的应用于干酪生产前乳的浓缩与分级，以及从乳清中分离乳清蛋白。

4.Ulrafilration is used widely to concentrate and fractionate milk prior to cheese production and to separate whey proteins from whey .

超滤广泛的应用于干酪生产前乳的浓缩与分级，以及从乳清中分离乳清蛋白。

5.In chemistry, we often need to fractionate 分馏 mixtures to isolate pure compounds.

在化学中，我们经常需要分馏混合物以分离纯化合物。

6.To study the different components, researchers will fractionate 分馏 the sample.

为了研究不同的成分，研究人员将对样品进行分馏。

7.Scientists can fractionate 分馏 proteins using techniques like gel filtration.

科学家可以使用凝胶过滤等技术来分馏蛋白质。

8.The oil industry uses distillation to fractionate 分馏 crude oil into various useful products.

石油行业使用蒸馏来分馏原油以获得各种有用的产品。

9.The process of fractionate 分馏 helps in separating isotopes for nuclear applications.

分馏过程有助于分离用于核应用的同位素。

作文

In the field of chemistry, the process of separation is crucial for obtaining pure substances. One of the methods employed to achieve this is to fractionate (分馏) mixtures into their individual components. This technique is not only essential in laboratories but also plays a significant role in various industries, including petrochemicals, pharmaceuticals, and food processing. To understand how fractionation (分馏) works, we first need to grasp the concept of mixtures. A mixture consists of two or more substances that are physically combined but not chemically bonded. For instance, crude oil is a complex mixture of hydrocarbons and other organic compounds. To utilize this resource effectively, it must be separated into its constituent parts, such as gasoline, diesel, and kerosene. This is where the process of fractionation (分馏) comes into play.The most common method of fractionating (分馏) a liquid mixture is through distillation. During this process, the mixture is heated, causing the components with lower boiling points to vaporize first. These vapors are then collected and cooled, condensing back into liquid form. The remaining components, which have higher boiling points, can be further heated and fractionated (分馏) in subsequent steps. This sequential heating and cooling allow for the effective separation of the mixture into its individual fractions.In addition to distillation, there are other techniques used to fractionate (分馏) mixtures. One such method is chromatography, which involves passing a mixture through a medium that separates the components based on their different affinities. For example, in gas chromatography, a sample is vaporized and carried by an inert gas through a column coated with a stationary phase. As the components travel through the column, they interact differently with the stationary phase, leading to their separation.The importance of fractionation (分馏) cannot be overstated. In the pharmaceutical industry, for example, the ability to fractionate (分馏) compounds allows for the isolation of active ingredients needed for medication. This ensures that patients receive safe and effective treatments. Similarly, in the food industry, fractionation (分馏) is used to separate oils and fats, enhancing flavor and shelf life while maintaining nutritional value.Moreover, the environmental impact of fractionation (分馏) processes is an area of ongoing research. As industries strive to become more sustainable, finding ways to fractionate (分馏) substances with minimal energy consumption and waste production is critical. Innovations such as membrane technology and supercritical fluid extraction are being explored to improve the efficiency and reduce the ecological footprint of fractionation (分馏).In conclusion, the process of fractionating (分馏) mixtures is a fundamental technique in science and industry. It allows for the separation and purification of substances, facilitating advancements in various fields. As we continue to explore new methods and technologies, the significance of fractionation (分馏) will undoubtedly grow, helping us to better harness the resources available to us and create a more sustainable future.

在化学领域，分离过程对于获得纯物质至关重要。实现这一目标的方法之一是将混合物进行分馏（分馏）以提取其各个组成部分。这一技术不仅在实验室中必不可少，还在石油化工、制药和食品加工等多个行业发挥着重要作用。要理解分馏（分馏）是如何工作的，我们首先需要掌握混合物的概念。混合物是由两种或多种物质物理结合而成，但并没有化学结合。例如，原油是由烃类和其他有机化合物组成的复杂混合物。为了有效利用这一资源，必须将其分离为组成部分，如汽油、柴油和煤油。这就是分馏（分馏）过程发挥作用的地方。分离液体混合物的最常见方法是通过蒸馏。在此过程中，混合物被加热，使得沸点较低的组分首先蒸发。这些蒸气随后被收集并冷却，重新凝结成液体。剩余的组分则具有较高的沸点，可以在后续步骤中进一步加热和分馏（分馏）。这种顺序加热和冷却的过程使得有效分离混合物中的各个组分成为可能。除了蒸馏，还有其他技术用于分馏（分馏）混合物。其中一种方法是色谱法，它涉及将混合物通过一种介质进行分离，基于其不同的亲和力。例如，在气相色谱法中，样品被气化并通过涂有固定相的柱子由惰性气体携带。当组分通过柱子时，它们与固定相的相互作用不同，从而导致分离。分馏（分馏）的重要性不容小觑。例如，在制药行业，能够分馏（分馏）化合物可以使所需的活性成分分离出来。这确保了患者能够接受安全有效的治疗。同样，在食品工业中，分馏（分馏）用于分离油脂，增强风味和保质期，同时保持营养价值。此外，分馏（分馏）过程对环境的影响也是一个持续研究的领域。随着各行业努力实现可持续发展，寻找以最小能耗和废物生产方式进行分馏（分馏）物质的途径至关重要。膜技术和超临界流体萃取等创新正在被探索，以提高分馏（分馏）的效率，并减少生态足迹。总之，分馏（分馏）混合物的过程是科学和工业中的基本技术。它允许对物质进行分离和纯化，促进各个领域的进步。随着我们继续探索新的方法和技术，分馏（分馏）的意义无疑会增长，帮助我们更好地利用可用资源，创造一个更加可持续的未来。