21What can residue on the measurement surfaces cause?22How do accuracy and repeatability differ?23Why is wavelength accuracy important?24What do spectral bandwidth and resolution affect?25What is stray light?26Why does stray light cause high absorbance readings to be underestimated?27What is signal-to-noise ratio?28Why does baseline stability matter?29What is photometric linearity?30Are calibration and verification the same?

What is photometric linearity?

Within a specified range, instrument response remains approximately linear with true absorbance or concentration. The source, detector, noise and stray light all limit that range.

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