GraphIt
.now
/
Subjects
Tutorial
About
Contact
/
Chemistry
/
Beer-Lambert Law
/
Advanced Editor
🧪 Chemistry
← Standard view
Scale Graph to Fit Data
Copy
PNG ↓
Labels
Graph title
X-axis label
Y-axis label
Axis Bounds
X-Axis
to
Y-Axis
to
Apply
Parameters
Molar absorptivity ε (L mol⁻¹ cm⁻¹)
Path length l₁ (cm)
Path length l₂ (cm)
Max concentration (mol/L)
Key Concepts
•
A = ε·l·c
: absorbance is proportional to concentration (straight line through origin)
•
ε
(molar absorptivity) is a property of the substance at a given wavelength
•
l
is the path length through the sample (cuvette width)
• A = log₁₀(I₀/I) — ratio of incident to transmitted light intensity
• Beer-Lambert law breaks down at very high concentrations (>0.01 M) due to molecular interactions
Legend
Show Legend
Yes
No
Size
10