FOM Name: Spectrometer UV VIS NIR Lambda19
Model Number: Perkin Elmer Lambda 19 UV/Vis/NIR
Contact: Anna Kiyanova (anna.kiyanova@wisc.edu, 608-263-1735)
Center: SMCL
Location: MSE Room 177
Perkin-Elmer Lambda 19 UV/Vis/NIR spectrophotometer is a general purpose instrument for absorption spectroscopy in the ultraviolet, visible, and near infrared spectral regions. It is equipped by an Integrating sphere which allows measurement of transmittance and reflectance of diffuse or scattering materials as a function of wavelength.
This is an accordion element with a series of buttons that open and close related content panels.
Configuration
- Optical scheme: double-beam, all-reflecting, double monochromator.
- Integrating sphere: Labsphere RSA-PE-19 6″ (150 mm) diameter.
- Wavelength range: 200 nm to 2500 nm (limited by the integrating sphere).
- Wavelength accuracy: +-0.15 nm (UV/Vis), +-0.6 nm (NIR).
- Wavelength reproducibility: +-0.02 nm (UV/Vis), +-0.08 nm (NIR).
- Resolution: 0.05-5.0 nm (UV/Vis), 0.2-20 nm (NIR).
- Data interval: 0.01-1.0 nm.
- Photometric accuracy: Absorbance +-0.003 at 440 – 635 nm and Absorbance = 1.
- Baseline stability: Absorbance < 0.0002 per hour (500 nm, after warmup).
- Scan speed: 0.9 – 960 nm/min.
- Beam height: 10 mm at the cell plane.
- Beam width: depends on the slit, 4.5 mm for 5 nm slit at the cell plane.
- Light source: deuterium lamp (UV), halogen lamp (Vis/NIR).
- Detectors: PMT (UV/Vis), PbS (NIR).
