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An optical design using two concave mirrors and a diffraction grating to disperse and focus light at a specific wavelength. Used in Alpha, POP, and MRX Series for precise wavelength selection and minimal stray light.

Quantitative determination of the amount of a substance in a solution using absorbance measurements and a calibration curve or known extinction coefficient. A primary application of UV-Vis spectrophotometry.

A 2048-element detector array used in NanoQ Series for rapid full-spectrum acquisition across 190–850 nm. Enables simultaneous multi-wavelength detection without moving parts.

The application of mathematical and statistical methods to chemical data. Used in NIR analysis (MRX N1) and Raman analysis (ExPro R Series) to build predictive models (PLS/OPLS) for quantitative analysis of complex samples.

A device that holds cuvettes or sample cells in the light path of a spectrophotometer. Alpha and POP are equipped with an automatic rotary 8-position multi-cell holder for sequential sample analysis.

A graph relating absorbance to known concentrations of a standard solution. Used in Quantitation Mode to determine unknown sample concentrations. K LAB instruments support Linear, Quadratic, and Cubic curve types.