UV/Vis spectrophotometers, U-3900
U-3900 and U-3900H spectrophotometers are comprehensive, research-grade solutions. They provide excellent performance afforded by low stray light, selectable band pass and high energy.
- Double-beam stability provides improved accuracy and repeatability over extended periods of time
- Ability to reference-beam attenuate highly absorbing species for improved signal to noise
- Selectable scanning rate range of 1,5 to 2400 nm/min and changeable scan rate for the UV region to minimise noise further
- Interface via USB and a laptop or notebook PC format, can easily sit on a flat surface of the instrument (see picture)
The U-3900H is useful for measuring of samples with high absorbance/low transmittance yet still achieving excellent linearity.
: Including sipper systems, alternative cell holders, filter holders and integrating spheres. Please contact your local Avantor specialists.
: UV Solutions for U-3900 software (supplied) offers the flexibility and wide ranging functionality.
- Catalog No:
- 634-0754
- 634-0756
- Model:
- U-3900H
- U-3900
- Optical design:
- Double beam (100 mm spacing) with double monochromator
- Double beam (100 mm spacing) with single monochromator
- Absorbance range:
- −5,5 - 5,5 A
- −3,8 - 3,8 A
- Absorbance accuracy:
- ±0,0003 A (190 − 850 nm)
- ±0,0003 A (190 − 850 nm)
- Photometric accuracy:
- ±0,3% T
- ±0,3% T
- Photometric range:
- 0 - 300% T
- 0 - 300% T
- Wavelength accuracy:
- ±0,1 nm @ 656 nm after calibration
- ±0,1 nm @ 656 nm after calibration
- Wavelength range:
- 190 - 900 nm
- 190 - 900 nm
- Cell compartment:
- 120×300×140 mm
- 120×300×140 mm
- Electrical:
- 100 - 240 V
- Interfaces:
- USB
- USB
- Light source:
- Tungsten/deuterium
- Tungsten/deuterium
- Scanning speed:
- 1,5; 3; 15; 30; 60; 120; 300; 600; 1200; 1800; 2400 nm/min
- 1,5; 3; 15; 30; 60; 120; 300; 600; 1200; 1800; 2400 nm/min
- Spectral bandwidth:
- 0,1; 0,5; 1; 2; 4; 5 nm − 6 steps
- 0,1; 0,5; 1; 2; 4; 5 nm − 6 steps
- Stray light:
- 0,00025% (NaI: 220 nm, NaNO₂: 340 nm)
- 0,015% (NaI: 220 nm, NaNO₂: 340 nm)
- W×D×H:
- 680×692×257 mm
- 680×692×257 mm
- Weight:
- 45 kg
- 45 kg