Biochrom Libra Instruments

Biochrom Libra S50PC UV/Vis Spectrophotometer

Biochrom Libra S50PC UV/Vis Spectrophotometer
  • Split beam PC controlled scanning UV/Vis spectrophotometer covering 190-1100nm
  • 2nm bandwidth
  • Long life Xenon lamp technology for low cost of ownership
  • PC controlled for a flexible and cusomizable instrument
  • Powerful Resolution Software. Optional Life Science and 21 CFR software modules and IQ/OQ

Designed for busy multi-user laboratories
The Biochrom Libra S50PC model is robustly designed to deliver reliable, low maintenance UV/Visible spectrophotometry in environments with multiple users. Users can quickly and easily walk up to the instrument, set up a sample, select the appropriate measurement protocols and collect the results. 21CFR Part 11 compliance via the optional Resolution software.

Resolution PC Software
Supplied with the Biochrom Libra S50PC Resolution PC software offers users extra flexibility on data collection and manipulation. Resolution has the power to work in the way you want and includes modules for fixed wavelength, wavelength scanning, kinetics and quantitation measurements plus a validation routine for checking instrument performance. Data export options include Microsoft® Word and Excel® plus Adobe® PDF formats. Optional upgrade modules are also available including Resolution Life for Nucleic Acid and protein measurement and Resolution CFR for 21 CFR part 11 compliance.

Work the way you want
Having an external PC to control your spectrophotometer and manipulate the data gives you the ultimate in flexibility and control. Whether looking for small differences in multiple spectral overlays, carrying out post-run manipulations on large numbers of samples or simply fulfilling regulatory requirements, Biochrom's Resolution software has the flexibility to work and report in the way you want. 

Create your custom analyzer
The Method Developer module allows you to customize your Biochrom Libra to suit the exact needs of your laboratory. Set up custom methods to be set up in all applications to include sample prompts containing information such as method SOP timings and the ability to lock individual method parameters. 

Cell holders
The Biochrom Libra S50 is supplied with a 10mm pathlength cell holder.

The sample compartment is designed for use with a wide range of accessories. All are designed to be easily changed by users with the minimum of tools. See Biochrom Libra S50 Accessories for a full list of optional accessories with order codes. Biochrom Resolution CFR Software is available as an optional accessory.

Full technical specifications shown below, optional accessories marked *

Technical Specifications
Specification Data
Type UV/Vis 
Wavelength Range 190 - 1100nm 
Wavelength Accuracy (+/-) 0.5nm 
Wavelength Reproducibility (+/-) 0.1nm 
Lamp Source Xenon (PTR) 
Beam Split Beam 
Optical System Reference Beam Compensation 
Bandwidth 2nm 
Detector Dual Solid State Silicon photodiode 
Photometric Range -4.000A to 4.000A 
Stray Light < 0.050%T at 220nm (NaI), < 0.050%T at 340nm (NaNO2
Zero Stability ± 0.001A/hr at 500nm 
Baseline Flatness ± 0.002A 220 to 900nm 
Measurement Type Fixed Wavelength, Abs/%T, Abs ratio, Abs difference, concentration (factor), concentration (standard curve), multiwavelength, kinetics, validation, Life Science Methods*, cell density 
Cell Compatibility Cuvette, Microcell*, Variable Pathlength Cell* 
Other Sample Containers Test Tube* 
Cell Holder Single, 8 cell changer*, 5 position heated cell changer*, variable pathlength cell holder* 
Accessory Options Film holder* 
Method Storage Unlimited 
Compliance 21 CFR part 11*, IQ/OQ* 
Data Output Print*, Export to PC, PC Control 
Display None (PC dependent) 
Data Interface USB 
Languages English 
Power Requirement 100-240V AC, 50/60Hz, 150VA 
Weight 17.5Kg (38.6lb) 
Dimensions (WxDxH) 535 x 440 x 235mm (21.3 x 18.1 x 12.6 inches) 
Noise <0.002A peak to peak, 0.0008A RMS near 2A at 500nm. <0.00020A RMS at 0A at 500nm over 20 measurements 
Photometric Accuracy ± 0.002A at 0.5A, ± 0.004A at 1A, ± 0.006A at 2A at 440nm, 456nm, 546.1nm, 590nm, 635nm ± 0.005A using 60mg/L K2Cr2O7 
Photometric Reproducibility ± 0.002A at 1A 
Spectral Scanning Yes (up to 1100nm) 
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