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Beer–Lambert law

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Also known as Lambert-Beer law, Lambert–Beer law, Beer's law, Beer–Lambert–Bouguer law, Bouguer's law, Bouguer–Lambert law, Lambert's law of absorption

physical law describing absorption of light

Wikidata facts

Instance of
physical law
Named after
Pierre Bouguer
Show 1 more fact
Commons category
Lambert-Beer law
Sources (3)

via Wikidata · CC0

~23 min read

Encyclopedic overview

The Beer–Lambert law (also known as Beer’s law) is used to determine the concentration of substances in a solution. It describes how the amount of light that a solution absorbs is directly proportional to the solution's concentration. This relationship is commonly expressed as

A = ε c l

Excerpted from Wikipedia’s “Beer–Lambert law” article, available under the CC BY-SA 4.0 licence.