Service
Models drift, because processes change
A new raw-material supplier, a different strain, a cleaned cell with a slightly different path length, a seasonal change in feedstock — each shifts the spectrum in a way the original calibration never saw. Ongoing calibration support keeps the number on the screen trustworthy.
What support covers
- Revalidation of the chemometric model against fresh reference data.
- Model updating when feedstock, temperature range or product specification changes.
- Interpretation of residual alerts — what the instrument is seeing that the model does not recognise.
- Advice on the reference-sampling cadence needed to detect drift without returning to routine offline analysis.
Predictions drifting?
Send the residual trend and the recent reference comparisons and we will tell you whether it is the model or the process.