Biochrom Libra Instruments

Biochrom Libra S22 UV/Vis Spectrophotometer

Biochrom Libra S22 UV/Vis Spectrophotometer


  • Split Beam (RBC) UV/Vis Spectrophotometer covering 190-1100nm (<3nm bandwidth)
  • Press To Read (PTR) Xenon lamp technology
  • Instrument Performance Validation (IPV) facility
  • 8-position sample changer  
  • Rapid System Operation

The Biochrom Libra S22 is a simple-to-use instrument with advanced performance, incorporating Xenon lamp technology for longer source lifetime and lower maintenance costs. A further benefit of this design is Reference Beam Compensation (RBC) to remove optical noise and improve signal to background measurements.  

In addition to measuring absorbance, transmittance and concentration, wavelength scan (with zoom), absorbance changes with time, reaction rate determinations and standard curves can be displayed as graphics and printed out. User defined equations can be entered using multi-wavelength mode and up to 18 methods can be saved in separate operator folders. 

The S22 can be operated with Resolution software, a powerful yet intuitive PC software for data acquisition and analysis.

Designed for regulatory compliance
This instrument is ideal for industrial laboratories seeking GLP, IQ/OQ certification test plans and output to LIMS. The on-board self test diagnostics for instrument performance validation may be used in conjunction with the Qualification and Performance Verification Logbook (provided with the instruments) so that an ongoing record of instrument performance over time may be kept for GLP purposes. For 21CFR part 11 compliance, Resolution CFR software is required (optional).

Wide range of accessories
See Biochrom Libra Accessories for order codes for:

  • Cell changers:  4 position, heated electrical (Peltier) or by water circulation
  • Single cell holders: <10mm pathlength, 10-50mm pathlength, 100mm pathlength, water or electrically  heated, cylindrical, HPLC flowcell
  • Sipper with UV Quartz flow cell
Ordering Information Order Code
Biochrom Libra S22 Visible Spectrophotometer 80-2115-20
Resolution Lite 80-7100-30
Resolution 80-7100-31
Resolution Life Sciences 80-7100-32
Resolution CFR 80-7100-33
Serial Cable 80-2105-97
IQ/OQ Documentation 80-5000-19

Spare Parts
80-2109-50  Qualification and performance verification logbook
Order codes for spectrophotometric cells and cuvettes

Technical specifications are shown below. Optional accessories are marked *

Technical Specifications
Specification Data
Type UV/Vis 
Wavelength Range 190 - 1100nm 
Wavelength Accuracy (+/-) 1nm 
Wavelength Reproducibility (+/-) 0.5nm 
Lamp Source Xenon (PTR) 
Beam Split Beam 
Optical System Reference Beam Compensation 
Bandwidth <3nm 
Detector Dual Solid State Silicon photodiode 
Photometric Range -3.000 to 3.000A, -9999 to 9999 conc. units, 0.1 to 200%T 
Stray Light <0.05%T at 340nm 
Zero Stability ± 0.002A/h at 0A after warm up 
Baseline Flatness n/a 
Measurement Type Fixed Wavelength, Abs/%T, Abs ratio, Abs difference, concentration (standard curve), concentration (factor), multiwavelength, kinetics, Life Science Methods, cell density 
Cell Compatibility Cuvette, Flow Cell*, Microcell*, Variable Pathlength Cell* 
Other Sample Containers n/a 
Cell Holder Built in 8 cell changer, 4 position cell changer*, 6 and 8 position heated cell changers*, single cell holder* 
Accessory Options Flow cell*, Sipper*, Cylindrical Cell holder*, Autosampler capability* 
Method Storage Up to 18 
Compliance 21 CFR part 11*, IQ/OQ* 
Data Output Print*, Export to PC*, PC Control* 
Display Graphical LCD 
Data Interface serial, parallel 
Languages English, French, German, Italian, Spanish, Russian 
Power Requirement 90-265V, AC, 50/60Hz, 80VA 
Weight 13Kg (28.6lb) 
Dimensions (WxDxH) 51 x 37 x 23 cm (20 x 14.6 x 9.1 inches) 
Noise ± 0.001A near 0A and ± 0.002A near 2A at 600nm 
Photometric Accuracy +/- 0.5% or +/-0.003A to 3A at 546nm 
Photometric Reproducibility 0.5% of absorbance value 
Spectral Scanning Yes (up to 900nm) 
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