Reflectance TXT analysis

Import one run at a time. Add water, enzyme, or other runs to compare any number of series on the same time axes. Each file should contain wavelength and signal in two numeric columns.

Fixed intervals use natural filename order. File modified times can change when files are copied or extracted. Use the first measurement time to align runs on a shared timeline.

Results and settings are saved in this browser. Export a copy before clearing site data or switching devices. Raw spectra stay in your browser during processing.

RunFilesEOT change (µm)Height changeFlagged fitsManage

EOT Spectrum Comparison

Overlay two spectra and measure the difference between their peak positions and amplitudes.

Use EOT in µm. Import two columns per spectrum (EOT, amplitude), or import both with three columns (shared EOT, A, B) or four (EOT A, amplitude A, EOT B, amplitude B). CSV and tab-delimited text support an optional header row.

Showing simulated spectra.

SpectrumPeak EOT (µm)Peak amplitude

Peaks are the highest sampled amplitudes in the displayed EOT range. Use the range controls to isolate a feature.