Cyclic Voltammetry Calculator
Analyze CV Peaks & Reversibility
Enter scan rate, concentration, and peak data to compute i_p, D, n, and reversibility.
CV Parameters
Diffusion Coefficient D = — cm²/s
Theoretical i_p = — μA
Reversibility: —
E° = — V vs Ref
The Cyclic Voltammetry Calculator is a scientifically robust, interactive tool that computes **peak current (i_p)**, **diffusion coefficient (D)**, **reversibility**, and **formal potential (E°)** from experimental CV data. Built on the **Randles-Ševčík equation** and Nicholson’s reversibility criteria, it supports **reversible, quasi-reversible, and irreversible** systems. Whether you're developing electrochemical sensors for pesticides, studying soil redox, or teaching electroanalysis, this calculator delivers precision and insight. Explore sustainable sensing at Agri Care Hub.
What is Cyclic Voltammetry?
**Cyclic voltammetry (CV)** is a potentiodynamic technique that measures current as electrode potential is swept linearly. The resulting voltammogram shows oxidation/reduction peaks. Key parameters:
- i_p: Peak current
- E_p: Peak potential
- ΔE_p: Peak separation
Learn more on Cyclic Voltammetry Wikipedia.
Scientific Foundation: Randles-Ševčík
For reversible systems at 25°C:
ΔE_p = 59/n mV (reversible), >70 mV (irreversible)
Importance of Cyclic Voltammetry
Critical in:
- Sensors: Glucose, pesticides
- Batteries: Li-ion intercalation
- Corrosion: Metal passivation
- Environmental: Heavy metal detection in soil
- Education: Teaching redox kinetics
In agriculture, CV detects nitrate and heavy metals — a focus at Agri Care Hub.
User Guidelines
Steps:
- Enter n, C, A, v
- Input measured i_p and ΔE_p
- Click “Calculate Cyclic Voltammetry”
- View D, reversibility, and simulated CV
Use glassy carbon, 1 mM analyte, 0.1 M KCl
When and Why to Use
Use when you need to:
- Determine D of a new pesticide
- Validate sensor reversibility
- Study Fe³⁺/Fe²⁺ in soil extract
- Teach electron transfer
- Optimize scan rate
Purpose of the Calculator
To make CV analysis instant and accurate. It simulates voltammograms, diagnoses reversibility, and supports sensor R&D.
Example: Ferrocene
- n=1, C=1 mM, A=0.07 cm², v=100 mV/s
- i_p = 22 μA, ΔE_p = 60 mV → Reversible
- D ≈ 7.6 × 10⁻⁶ cm²/s
Applications in Agriculture
CV enables:
- Pesticide residue detection
- Soil redox monitoring
- Nutrient ion sensing
- Water quality analysis
Learn more at Agri Care Hub.
Scientific Validation
Based on:
- Bard & Faulkner “Electrochemical Methods”
- Randles (1948), Ševčík (1948)
- Nicholson reversibility criteria
- Cyclic Voltammetry Wikipedia
Benefits
- 100% accurate
- Interactive CV plot
- Mobile-friendly
- No login
- SEO-optimized
Conclusion
The Cyclic Voltammetry Calculator is your essential tool for electroanalysis. From lab research to field sensors, it delivers science-backed clarity. Start analyzing redox systems today with Agri Care Hub.