Spectrophotometer
SPECTROPHOTOMETRY
Ultraviolet–visible spectroscopy or ultraviolet–visible spectrophotometry (UV-VIS or UV/VIS) refers to absorption spectroscopy or reflectance spectroscopy in the ultraviolet-visible spectral region. The absorption or reflectance in the visible range directly affects the perceived color of the chemicals or materials involved. UV/VIS spectroscopy is routinely used in materials science and analytical chemistry for the characterization of the optical/electronic properties and the quantitative determination of different analytes, such as transition metal ions, highly conjugated organic compounds, and biological macromolecules.
Instrument characteristics
- Model: PerkinElmer Lambda 950
- Detector: Peltier-controlled PbS
- Spectral Range: 175-3300 nm
- Max Resolution: down to 0.05 nm