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Libra S70



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  • Double beam UV/Vis spectrophotometer covering 190-1100nm
  • 1nm bandwidth  and toluene hexane ratio >2.0 for full EP compliance
  • Colour Touch screen display with easy to use software built in
  • USB ports for method and result storage plus connection to a PC
  • Resolution PC software included. Optional 21CFRpart 11 compliance
  • Available with built in thermal printer, Bluetooth® or both.

Designed for busy multi-user laboratories
The Biochrom Libra S70 model is s robustly designed to deliver reliable, low maintenance UV/Visible spectrophotometry in environments with multiple users in a regulated environment such as method development. Users can quickly and easily walk up to the instrument, set up a sample, select the appropriate measurement protocols and collect the results. Store data and methods onboard the instrument or use the convenient USB port that enables individual users to load personal methods and transport data. 21CFR Part 11 compliance via the optional Resolution software.

Easy to use
Colour touch screen user interface with menu driven software and simple intuitive icons is easy to both use and to learn. Results can be easly transported to a remote PC by memory stick for analysis later, or link to a PC directly with PVC software (included). Full PC control with Resolution software

Built in Software
Full suite of software applications provided as standard with real choice of data export methods. Trace Manager enables you to manipulate  data stored on the instrument or USB memory stick. Multi level user log on facility allows supervisors to restrict access to software functionality allowing secure methods to be set up.

Software Modules Function
Single Wavelength Measurement Fixed wavelength, Abs/%T, and Concentration (factor)
Sample overlays, automatic feature detection and post run data manipulation
Concentration Standard Curve Quantitation using calibration curves with multiple standards and a choice of curve fits
Kinetics Serial (or parallel measurements with optional cell changer) including sample overlays and post run data manipulation
Life Science
DNA, RNA & Oligo concentration and purity measurement with optional wavelength scanning. CyDyeTM DNA quantitation. Tm calculation. Protein concentration by direct UV measurement or Bradford, Biuret, Lowry or BCA colorimetric methods
Equation Editor Turn your instrument into a "custom application analyzer" by setting up stored methods including calculations based on measured sample data, for example: Absorbance difference and ratios.

Easy to Connect
Two USB ports are provided as standard. One is conveniently located by the user touchscreen to enable USB memory sticks (flash-drives) to be be used to both store data and methods in secure and ASCII formats. Particularly useful for laboratories wishing to clone methods between multiple instruments. The other USB port is on the side of the instrument is used for PC communication, control, software update and print via computer (PVC). All stand-alone Biochrom Libra instruments offer users a choice in export and print functionality with selection parameters stored as part of any method.

  • Export to PC via USB cable (standard)
  • Built in printer (optional)
  • Export to a PC via Bluetooth (optional)
  • Full PC control with Resolution Software (included)

Resolution PC Software
Supplied with the Biochrom Libra S70 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.

Superb Optical Design
High energy throughput double beam optical system with fixed 1nm bandwidth gives users the flexibility and performance to measure demanding sample types whilst ensuring EP Compliance.

Cell Holders
The Biochrom Libra S70 is supplied with 10mm pathlength cell holders in sample and reference positions

The sample compartment is designed for use with a wide range of accessories.


Wavelength range: 190-1100nm
Beam: double
Wavelength selection: Czerny-Turner Monochromator
Light source: Deuterium/Tungsten
Bandwidth: 1nm