V2EX centrifugation

Centrifugation

释义 Definition

离心分离;离心作用:利用离心机高速旋转产生的离心力,把混合物按密度、大小或形状差异分开的一种方法。常用于生物实验(分离细胞、蛋白、DNA/RNA)、化学与医学检验等场景。

发音 Pronunciation (IPA)

/sntrfjen/

例句 Examples

Centrifugation separates blood into plasma and cells.
离心分离可以把血液分成血浆和血细胞。

After centrifugation at 12,000 rpm, the supernatant was carefully transferred to a new tube for further analysis.
以每分钟 12,000 转离心后,小心将上清液转移到新的离心管中以进行进一步分析。

词源 Etymology

centrifugation 来自 centrifugal(离心的):centri- 源自拉丁语 centrum(中心),fug- 源自拉丁语 fugere(逃离、逃跑),字面含义接近“从中心逃离”。后缀 -ation 表示“过程/作用”,因此整体表示“通过离心力进行分离的过程”。

相关词 Related Words

文学与经典著作中的用例 Literary Works

  • Molecular Cloning: A Laboratory Manual(Sambrook & Russell):多处在实验步骤中使用 centrifugation 描述离心分离操作。
  • Lehninger Principles of Biochemistry:在细胞组分分离、亚细胞结构研究相关章节中使用 centrifugation
  • Current Protocols in Molecular Biology:常见于样品制备与纯化流程,对 centrifugation 的转速与时间条件有规范表述。
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