1988 Volume 14 Issue 5 Pages 695-698
It was proposed that a precise thermostat used for an enzyme thermistor could be easily and accurately controlled by a microcomputer. The enzyme thermistor using the thermostat determined guaiacol, which is useful as a medicine. The temperature of the thermostat was controlled by means of a method of supervision with a short sampling period. The result demonstrated that the thermostat was controlled to an accuracy of ± 10-4K. In the pH 4.0 to 9.5 region the concentration of guaiacol was determined with the enzyme thermistor in the range of 0.1100mM. The temperature response was stable during the course of 500 runs with 10mM guaiacol.
