The theory of UV-visible spectroscopy exploits the wave-like nature of electromagnetic radiation and its interaction with matter and is widely used in analytical spectroscopic instruments to identify, characterize and quantify an extraordinary wide range of molecular compounds. When a material is irradiated with an electromagnetic wave, phenomena such as transmission, absorption, reflection, and scattering can occur and the observed spectrum shows the interaction of wavelengths with objects of a discrete dimensions, such as atoms, molecules, and macromolecules. Absorption occurs when the frequency of the incoming light is equal to the energy difference between a molecule’s ground and excited states. The excitation of an electron from the ground state to an excited state is described as an electronic transition. This is the key fundamental of molecular spectroscopy.
* https://jascoinc.com/learning-center/theory/spectroscopy/uv-vis-spectroscopy/
Specifications
Optical System : Single Monochromator, Dual Grating, Dual Detector
Light Source : (Deuterium Lamp)190 – 350 nm / (Halogen Lamp) 330-2,700 nm
Detector : Photomultiplier Tube(PMT), Peltier Cooled PbS Detector
Wavelength Range : 190-2,700 nm ± 0.3 nm
Scan Speed : 10 - 4,000 nm / min
Slew Speed : (UV/VIS Region)12,000 nm / min / (NIR Region) 48,000nm / min
SpectralBandwidth: (UV/VIS Region) 0.1,0.2,0.5,1,2,5,10 nm
S/W: Spectra ManagerⅡ
Acc.
Integrating Sphere Φ60mm
Powder/Solid Sample/Rotary Sample Holder