A computer-controlled battery-powered micropotentiostat

✍ Scribed by Mario R. Romero; Juan M. Marioli

• Publisher: John Wiley and Sons
• Year: 2000
• Tongue: English
• Weight: 205 KB
• Volume: 12
• Category: Article
• ISSN: 0895-7533
• DOI: 10.1002/(sici)1098-2728(2000)12:1<53::aid-lra10>3.0.co;2-u

✦ Synopsis

The design of a battery-powered computer-controlled micropotentiostat is described. This micropotentiostat was developed as an amperometric detector for flow-injection analysis and high-performance liquid chromatography. It is based on micropower operational amplifiers, powered by two standard 9 V batteries, and controlled by a personal computer through a commercial Analog-to-Digital-Digital-to-Analog acquisition card.

The analog and digital ports of the card allowed the implementation of automation in the selection of the measuring current range, baseline level compensation, and switching control of the batteries and electrochemical cell. The control software was written using the Turbo ‫םם‪C‬‬ language.