Regularly checking the spectral resolution of spectrophotometers ensures, for example, that neighbouring peaks are resolved and not superimposed on the peaks of bordering wavelengths. This also prevents absorbance errors.

For wavelength and absorption measurements, the resolution of the spectrophotometer must be considered. For high-resolution spectrophotometers, the spectral bandwidth should not exceed 10% of the natural bandwidth of the measured peak.

Filter Set for the Control of Resolution:

• Toluene in Hexane and Hexane (Reference Filter)