Table of Contents

Beer's Law

Beer-Lambert's law is the relationship between absorbance, concentration, and path length.

$A = εbc$

Variables

  • $A =$ absorbance
  • $ε =$ molar absorptivity (M^-1cm^-1)
  • $b =$ path length (cm)
  • $c =$ concentration (M)

Intuition

  • The higher the concentration, the higher the absorbance.
  • The longer the path length, the higher the absorbance.

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