797 VA Computrace

The versatile instrument for voltammetry

797 VA Computrace is a modern voltammetric work station connected to the PC via a USB port. The complementary PC software controls the determination, records and evaluates the measured data. Thanks to the sophisticated program design the operation is unbeatably simple. All the methods that are described in the Metrohm Application Bulletins and Metrohm Application Notes are already preinstalled. The integrated new designed potentiostat with galvanostat guarantees highest precision with reduced noise. The well-proven Multi Mode Electrode (MME) as well as rotating disk electrodes (RDE) from different materials are available as working electrodes, of course.

The most important applications

10 important advantages

• One instrument for voltammetric trace analysis and determinations of additives in metal finishing
• Highest sensitivity due to the combination of the well-proven Multi Mode Electrode with the new designed potentiostat
• Automation with the 813 Compact Autosampler or the 838 Advanced Sample Processor.
• Data archiving using the the database program Autodatabase with report generator
• More than 220 important analysis methods preinstalled
• Result in any number of formats
• Unique Exploratory mode especially designed for teaching in schools and universities. Ideal in combination with two Metrohm Monographs «Introduction to Polarography and Voltammetry» and "Practical Voltammetry"
• Integrated quality assurance with the GLP wizard, access rights for each user, and the automatic electrode test
• Simple operation due to the Windows oriented, clearly arranged user interface
• Connection to the USB port of the PC

797 VA Computrace - manual or automated

Without additional accessory the 797 VA Computrace is a fully functional analysis system for highest demands in accuracy and sensitivity. Higher comfort can be achieved with various extension possibilities.

• Automatic addition of solutions with 800 Dosinos
  Calibration in voltammetry is done by standard addition or calibration curve and can be carried out automatically using max. 3 800 Dosinos. All other auxiliary solutions such as buffers or complexing agents can be added automatically as well.
• Automatic rinsing with the 772 Pump Units or 823 Membrane Pump Units
  Two 772 Pump Units or 823 Membrane Pump Units can rinse and empty the measuring vessel after each analysis automatically. This option can also be used for manually operated analysis systems as well as for VA Computrace systems with Autosampler. The reproducible and efficient rinsing minimizes carry-over and increases the accuracy of the analyses.
• Fully automated analysis of small sample series with the 813 Compact Autosampler in voltammetric trace analysis
  The 813 Compact Autosampler allows the precise and reproducible analysis of several samples. The sample rack holds maximum 18 samples, that are transferred into the measuring vessel on the 797 VA Computrace using the built-in peristaltic pump.
• Fully automated CVS detetermination of organic additives in plating solutions with the 838 Advanced VA Sample Processor
  The flexible and fully unattended determination of organic additives can be realized with the 838 Advanced VA Sample Processor. The sample rack holds maximum 28 samples for the determination of brighteners and 56 samples or calibration standards for the determination of suppressors.
• Autodatabase
  All measured data can be stored in a database with the program Autodatabase. The report generator allows to assess all data on the screen and to generate individually designed hardcopies.

In order to make your work even easier we have made our application know-how available on-line. On our website you can call up a wide range of application information. Apart from the list of our Application Bulletins you will also find more than 100 VA Application Notes, which contain many interesting practical examples from our application laboratories. Sample preparation to remove organic interferences from samples can be performed comfortably with the 705 UV Digester.

Ordering information

For automatic standard addition:

For automatic rinsing:

813 VA Compact Autosampler:

838 Advanced VA Sample Processor:

Technical information

PC requirements

Get more information

• Product Brochure
• Voltammetry and Polarography: Polarographs and automation for trace analysis and CVS
• Monograph: Introduction to Polarography and Voltammetry
• Monograph: Practical Voltammetry

If you wish to get more information you may either submit our reply form or send an e-mail to info@metrohm.com.