Service
The model is the part of an inline project that decides whether it works
An instrument measures absorbance at hundreds of wavelengths. Converting that into concentration is a regression problem, and in a real process stream — overlapping bands, drifting baselines, scattering particles — it has to be multivariate. We build that model against your chemistry and integrate it into the software platform.
How it works
How a calibration is built
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01
Define the measurement
Which analytes, over which concentration range, under which process conditions. This decides everything downstream.
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02
Design the calibration set
Span the full range including the ends, and deliberately break the correlations that occur naturally — otherwise the model cannot tell two co-varying analytes apart when a batch behaves abnormally.
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03
Collect references
Against the offline method you already trust, usually HPLC. The model can never be more accurate than its references.
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04
Build and cross-validate
Preprocessing, then latent variables chosen on batch-blocked cross-validation. Random sample-wise validation reports an optimistic error and invites overfitting.
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05
Validate on held-out batches
Prediction error on batches that were never part of model building is the number worth quoting.
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06
Deploy and monitor
Spectral residuals are watched so the model warns you when it sees something it was not trained on — before the predictions visibly go wrong.
What you get
- A calibration tailored to your chemistry, integrated into the instrument software as its built-in model.
- Real-time reactant and product concentrations, without a manual calibration step.
- Documentation of the preprocessing and the validation, so the model is transferable and auditable.
- Revalidation as feedstock, temperature or product specification changes.
- Where you want to own model building in-house, the route through KAX Group's VEKTOR DIREKTOR™ and ProaXesS, rather than a dead end.
Have an instrument but no usable model?
Model development is available on its own. Tell us the analytes, the range and the reference method you use today.