📊 Optical Density Formula
OD = -log₁₀(T) = A
Where OD is optical density, T is transmittance, A is absorbance
Optical Density:
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Transmittance (%):
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Absorbance:
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Method Used:
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💡 Tips & Information
- Optical density = -log₁₀(transmittance)
- Higher OD = lower transmittance = more absorption
- Beer-Lambert Law: A = εcl
- OD = 1 means 10% transmittance
- OD = 2 means 1% transmittance