Locate peaks in voltammetric scans and report position, height, area, and full width at half maximum.
A voltammetric peak carries two pieces of information. Its position tells you what the species is; its height tells you how much of it is there. Peak finding in Studio extracts both in one pass.
The same routine works on CV, DPV, and SWV, on scans with a single clean peak or on scans with half a dozen overlapping features.
Studio subtracts a locally fitted baseline, then scans the result for local maxima that pass a prominence threshold. Each candidate is fitted with a symmetric lineshape to refine position, height, and FWHM.
For CVs specifically, both anodic and cathodic peaks are detected. Peak separation (ΔEp) and current ratio (ipa / ipc) are reported automatically.
Baseline mode
Typical: Linear
Linear, tangent, or polynomial baseline under the peak. Linear for well-separated peaks, tangent for shoulders, polynomial for sloping backgrounds.
Prominence threshold
Typical: 3× baseline noise
Minimum peak height above baseline before a feature is counted. Raise to suppress noise, lower to catch small peaks.
Search window
Potential range in which to look. Leave empty to search the full scan.
Lineshape
Typical: Gaussian
Gaussian, Lorentzian, or asymmetric. Used to refine width and area. Gaussian covers most diffusive voltammograms.
Walkthrough
Quantify dopamine from a DPV calibration series
Result
Calibration slope, intercept, R², and a limit of detection calculated from the measured noise. Every number traces back to the raw scan.
Find peaks sits next to the scan plot in Sensitify Studio. Run it on a single scan or apply it to a whole batch. Detected peaks overlay directly on the data and the parameter table updates live as you adjust the prominence threshold.
Step-by-step in docs
Find peaks
Other analysis tools