ABTS radical (414 nm) Concentration from Absorbance
Use the Beer–Lambert law to convert an absorbance reading of ABTS radical (414 nm) into molar concentration, using its extinction coefficient (36,000 M⁻¹cm⁻¹).
- 1Beer–Lambert law A = ε·c·l
c = A/(ε·l) = 0.5/(36000×1) = 1.389e-5 mol/L
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Cite this tool
ToolJolt. ABTS radical (414 nm) Concentration from Absorbance. ToolJolt Chemistry & Lab Tools; 2026. https://tooljolt.comA no-nonsense abts radical (414 nm) concentration from absorbance built for UV-Vis spectroscopy. It shows the substituted formula, not just the answer, so you can check the working.
About ABTS radical (414 nm) Concentration from Absorbance
Use the Beer–Lambert law to convert an absorbance reading of ABTS radical (414 nm) into molar concentration, using its extinction coefficient (36,000 M⁻¹cm⁻¹). The calculation uses c = A / (ε · l). The stakes: The Beer–Lambert law is only linear in a window (≈0.1–1.0 absorbance). Quantitation outside it, or with the wrong extinction coefficient, silently biases every concentration you report. ABTS radical (414 nm): ε = 36,000 M⁻¹cm⁻¹ at the stated wavelength. Watch out for: wrong path length (not 1 cm); not blanking against the correct buffer; reading absorbance above ~1.0 without diluting. Because the calculation happens entirely client-side, you can use it offline and with confidential data, then cite the stable URL in your methods or teaching notes.
How to use ABTS radical (414 nm) Concentration from Absorbance
- 1Enter your values: Absorbance (A), Molar extinction ε, Path length.
- 2Read the headline result and the supporting figures, which recompute as you type.
- 3Open “Worked example with your numbers” to see the substituted formula step by step.
- 4Copy the result, or use the cite-this-tool snippet for your methods section.
Why use ABTS radical (414 nm) Concentration from Absorbance?
- ✓Copy-ready result and a one-line “cite this tool” snippet for your methods section
- ✓Designed for analytical chemists, biochemists and QC labs who need a trustworthy answer fast
- ✓Instant, client-side result — works offline once loaded and keeps your data private
- ✓Shows the worked example step by step with your own numbers, not just a final figure
- ✓Pre-filled with sensible, niche-specific defaults so it is useful the second it loads
Frequently asked questions
Any tips specific to this calculation?+
ABTS radical (414 nm): ε = 36,000 M⁻¹cm⁻¹ at the stated wavelength. Also watch out for: wrong path length (not 1 cm) and using a molar ε with a mass concentration.
Is this abts radical (414 nm) concentration from absorbance free to use?+
Yes. It is completely free, needs no sign-up, and runs entirely in your browser — there are no usage limits.
What formula does it use?+
It uses c = A / (ε · l) The full worked example is shown beneath the result so you can verify each step.
What are the most common mistakes here?+
In UV-Vis spectroscopy, watch for: reading absorbance above ~1.0 without diluting; using a molar ε with a mass concentration; wrong path length (not 1 cm); not blanking against the correct buffer. This tool shows the working so you can catch these before they cost an experiment.
Does my data leave my device?+
No. All computation happens locally in your browser. Nothing you enter — sequences, concentrations or measurements — is uploaded to any server, so it is safe for confidential work.
Can I cite this tool?+
Yes — use the “Cite this tool” snippet on the page. Many users link these calculators from methods sections, lab SOPs and teaching materials.
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