Assayfit Pro universal curve fitting Assayfit Pro universal curve fitting

Assay results data analysis

Perform curve fitting with Assayfit Pro using this page. Click here to read the terms for use and distribution.
Alternatively use the Microsoft Excel add-in to perform data analysis. Check the menu for other online options and previous versions.

Data entry

1. Enter your assay result data in the spreadsheet like tables below, you can copy and paste from Excel.
2. Enter calibrator data in the table or indicate them in the sample list with CAL- followed by the concentration in the ID.
3. Enter unknown samples to calculate.
4. Enter the run Id and select the curve fitting function.
5. Click submit to perform curve fitting and data analysis.

Unknown samples

Run ID

Curve fit settings




Data analysis results

Fit Summary

Calibration curve


Individual results

Fit output