Frequently asked questions

18What is a broken liquid column?19Which samples are more prone to liquid-column problems?20Why do bubbles affect results?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?

What is signal-to-noise ratio?

Signal-to-noise ratio describes useful signal relative to random noise. Any value should be accompanied by wavelength, signal level, integration time, algorithm and number of repeats.

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