centrifugation

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数据源: ai_enrichment
离心作用是一种通过高速旋转产生的离心力来分离混合物中不同密度成分的物理过程,常用于科学和工业领域。

用法要点

句型搭配

通常用作名词,在句子中作主语或宾语,常见于被动语态或与动词搭配使用,描述离心过程或结果。

• The centrifugation was performed at high speed.
• We use centrifugation to separate the components.
• After centrifugation, the sample was analyzed.

介词用法

常与介词'by'、'through'、'after'、'during'等连用,表示通过离心法、在离心后或离心过程中。

• Separation by centrifugation is efficient.
• The liquid was clarified through centrifugation.
• After centrifugation, the pellet was collected.

语域说明

主要用于科技、医学、化学和工业语境,属于正式或学术用语,在日常对话中较少使用,除非涉及相关专业话题。

• In the lab, centrifugation is a routine step.
• The protocol requires centrifugation at 10,000 rpm.
• Industrial centrifugation processes are automated.

基础例句

In the science class, we learned how centrifugation helps separate blood components.

在科学课上,我们学习了离心作用如何帮助分离血液成分。

The lab technician used centrifugation to clarify the cloudy solution quickly.

实验室技术员使用离心法快速澄清了浑浊的溶液。

After centrifugation, the heavier particles settled at the bottom of the tube.

离心后,较重的颗粒沉降在试管底部。

高级例句

In biochemistry, differential centrifugation is employed to isolate cellular organelles based on density.

在生物化学中,差速离心法被用来根据密度分离细胞器。

The pharmaceutical company optimized the centrifugation parameters to enhance drug purity during manufacturing.

这家制药公司优化了离心参数,以提高生产过程中的药物纯度。

Ultracentrifugation at 100,000 rpm allows for the separation of macromolecules such as proteins and nucleic acids.

在10万转每分钟的超速离心下,可以实现蛋白质和核酸等大分子的分离。

高频搭配

verb

perform centrifugationuse centrifugationapply centrifugationcarry out centrifugationsubject to centrifugation

adjective

high-speed centrifugationdifferential centrifugationultracentrifugationpreparative centrifugationanalytical centrifugation

noun

centrifugation stepcentrifugation processcentrifugation timecentrifugation speedcentrifugation force

adverb

rapidly by centrifugationefficiently through centrifugationgently after centrifugation

preposition

by centrifugationthrough centrifugationafter centrifugationduring centrifugation

phrase

centrifugation at high speedcentrifugation of the samplecentrifugation to separatecentrifugation for purification

常见错误

❌ 错误:We centrifugation the mixture to get clear liquid.
✓ 正确:We use centrifugation to clarify the mixture.

错误:将'centrifugation'误用作动词。正确:'centrifugation'是名词,应搭配动词如'use'或'perform'来表示动作。

❌ 错误:The centrifugation is a method for mixing solutions.
✓ 正确:Centrifugation is a method for separating mixtures.

错误:误解了离心作用的目的。正确:离心作用是用于分离混合物,而不是混合溶液。

近义词辨析

separation

'separation'是广义的分离过程,而'centrifugation'特指通过离心力实现的分离,通常涉及高速旋转设备。

Separation can be achieved by filtration or centrifugation, but centrifugation is faster for dense particles.

sedimentation

'sedimentation'指颗粒在重力作用下自然沉降,而'centrifugation'通过人工离心力加速沉降过程,效率更高。

Sedimentation takes hours, but centrifugation completes in minutes under high-speed conditions.