As their name implies, ultraviolet visible spectrophotometers (often referred to as a UV Vis spectrophotometer or just a UV spectrophotometer) quantify the optical properties of samples in the ultraviolet and visible wavelength ranges of light (typically 190 to 900/1100 nm). Specifically, UV visible spectroscopy determines how much light of a given wavelength passes through a sample, and how much is absorbed. Such information can be diagnostic of molecular identity, concentration, structure, or activity, whether of organic species such as porphyrins, benzenes, and napthalenes, or of biomolecules like nucleic acids and proteins. Spectrophotometers can scan either fixed (i.e., predefined) or variable wavelengths, and come in both single- and double-beam configurations.
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Shimadzu
- Single Beam
- 220 to 800 nm
- +/- 1 nm
- Xenon flash lamp
Shimadzu
- Single Beam
- 190 to 1,100 nm
- ±1 nm
- Deuterium (D2) lamp and 20 W halogen (WI) lamp
Shimadzu
- Double beam
- 190 to 1100 nm
- 1 nm
- 50 W Halogen Lamp, Deuterium Lamp
Shimadzu
- Double Beam, Single Monochromator
- 185 to 900 nm or 220 to 1400 nm (when the ISR-2600Plus Integrating Sphere Attachment is used)
- 0.1 nm
- 50 W Halogen Lamp, Deuterium Lamp
Shimadzu
- Double Beam, Double Monochromator
- 185 to 900 nm
- 0.1 nm
- 50 W Halogen Lamp, Deuterium Lamp
Shimadzu
- High-performance double monochromator
- 185 to 3,300 nm
- Maximum resolution: 0.1 nm
- 50 W halogen lamp, deuterium lamp
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