V2EX absorbance

Absorbance

释义 Definition

吸光度:衡量物质对特定波长光的吸收程度的量,常用于分光光度法;通常与溶液浓度和光程长度有关(在一定条件下符合比尔-朗伯定律)。

发音 Pronunciation

/bzrbns/

例句 Examples

The absorbance increased as the solution became more concentrated.
随着溶液浓度增大,吸光度也增加了。

After calibrating the spectrophotometer, we measured the sample’s absorbance at 600 nm to estimate cell density.
校准分光光度计后,我们测量了样品在600纳米处的吸光度,以估算细胞密度。

词源 Etymology

absorbance 来自动词 absorb(吸收)加名词后缀 -ance(表示“性质/状态”)。该词在科学语境中被规范化,用来指代“吸收光的程度”这一可测量的量。

相关词 Related Words

文学作品 Literary Works

  • Physical Chemistry》(Peter Atkins & Julio de Paula)中在光谱学章节讨论吸光度与比尔-朗伯定律。
  • Principles of Instrumental Analysis》(Skoog, Holler, Crouch)中在分光光度分析部分使用并解释 absorbance。
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