// multi-utility computation suite · offline · instant · precise
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sci.Beer-Lambert-absorbance Calculator
Calculates absorbance A = ε×c×l and transmittance T = 10^(−A) from Beer-Lambert law, and solves for concentration from measured absorbance. Beer-Lambert linearity breaks down above A ≈ 2 (1% transmittance) due to detector non-linearity and stray light — dilution is recommended above this range.
Inputs
Epsilon L Mol Cm
Reference formula or conversion factor shown for context.
C Mol L
Amount of solute per unit volume. Higher concentration = more solute dissolved.
Path Length Cm
Linear measurement. Ensure consistent units: 1 m = 1,000 mm = 3.281 ft.
I0
Reference formula or conversion factor shown for context.
Results
absorbance A
Sample size or count used in the calculation.
transmittance T (%)
Sample size or count used in the calculation.
transmitted intensity I
Sample size or count used in the calculation.
A = ε·c·l
Reference formula or conversion factor shown for context.
ε interpretation
Qualitative summary of what the computed numbers mean in practical terms.
analytical range
The difference between the maximum and minimum values.