IMAGE. The Perkin Elmer Lambda 11™ Single Beam UV/Vis
Spectrophotometer
A scanning ultraviolet/visible (UV/Vis) spectrophotometer operates on the same
principles as a Spectronic 20™. They both can be used for qualitative and quantitative analysis.
A scanning spectrophotometer's main advantage over the Spectronic 20™
is that the scanning spectrophotometer can rapidly scan a range of wavelengths and record absorbances at each wavelength. In this module, the Perkin Elmer Lambda 11™, a single beam spectrophotometer, is described but similar principles apply to all UV/Vis spectrophotometers. For specific operating instructions, refer to the operator's manual or other instructions.
Double beam and diode array spectrophotometers are also commonly used to obtain spectra.
