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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 15, Number 4
BKCSDE 15(4)
April 20, 1994 

An Effective Conductivity Amplifier and Computer Interfacing System for Chemical Kinetics
Kiyull Yang*, In-Sun Koo, Ikchoon Lee, Dong-Soo Jo
A simple and reliable conductivity amplifier and a computer interfacing system for the chemical kinetics in solution are developed. They utilize the simplifications in circuit design offered by a function generator, operational amplifiers and true RMS to DC converter, and a 12 bit dual slope integrating analog-digital converter is interfaced to a personal computer through an 8255A programmable peripheral interface (PPI). It has a good sensitivity of 224 ppm and a low conductance drift of -200 ppm/℃ with temperature variation. In addition, a graphic computer software CCP(conductance checking program) which is capable of storing and analyzing conductance data for the first order kinetics is developed.
280 - 284
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