P

Measurement of protein concentration using UV absorbance (280 nm) or colorimetric assays (Bradford, BCA, Biuret, Lowry). Supported by NanoQ Series (microvolume) and MRX Series (microplate format).

A multivariate regression method that relates spectral data to reference values for quantitative prediction. Used in ExPro R Series and MRX N1 to build calibration models from NIR or Raman spectral data.

An industrial digital computer used to control manufacturing processes. ProTecUV Converter connects to PLCs via 4–20 mA analog I/O, enabling integration with existing process control infrastructure.

The range of absorbance values that an instrument can reliably measure. Alpha: −4 to +4 Abs; POP: −3 to +3 Abs; MRX: 0 to 4.0 OD. Wider range accommodates higher concentration samples.

A measurement mode that measures absorbance or transmittance at selected wavelengths. Available in Alpha, POP, NanoQ, and MRX Series. Alpha and POP support up to 20 wavelengths simultaneously in this mode.

A software function that normalizes absorbance measurements to a standard 1 cm pathlength, allowing direct comparison of results from different well volumes or pathlengths. Supported by MRX Series.

An FDA framework for designing, analyzing, and controlling pharmaceutical manufacturing processes through timely measurement of critical process parameters. ProTecUV and ExPro R Series are PAT solutions enabling real-time inline process monitoring.