Absorbance: Difference between revisions
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|Meaning=Used mostly by chemists, the negative [[logarithm]] (base 10) of the [[transmittance]] of an absorbing sample, often corrected for [[reflection]] by its container. | |||
|Explanation=Despite its name, absorbance is a consequence of both [[scattering]] and [[absorption]], although scattering is usually assumed to be negligible. To within a constant multiplier, absorbance is [[absorption optical thickness]] and depends on the physical thickness of the sample. <br/>''Compare'' [[absorptance]]. | |||
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Latest revision as of 22:05, 27 March 2024
Used mostly by chemists, the negative logarithm (base 10) of the transmittance of an absorbing sample, often corrected for reflection by its container.
Despite its name, absorbance is a consequence of both scattering and absorption, although scattering is usually assumed to be negligible. To within a constant multiplier, absorbance is absorption optical thickness and depends on the physical thickness of the sample.
Compare absorptance.
