I. An isothermal titration microcalorimeter. II. Importance of micronutrients in nutrition. III. Zinc bibliography

• Main Author: Gardner, John Willard
• Format: Others
• Published: BYU ScholarsArchive 1973
• Subjects: Volumetric analysis; Calorimetry; Trace elements in nutrition; Nutrition; Zinc; Bibliography
• Online Access: https://scholarsarchive.byu.edu/etd/8210; https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=9210&context=etd

I. An isothermal titration microcalorimeter having a colume of 4 ml and capable of temerature control to ±2 x 10-5°C is described. Major components include a constant temperature water bath controlled to ±3 x 10-4°C, a platinum reation vessel, and an isothermal control circuit consisting of constant Peltier thermoelectric cooling and variable Joule heating controlled by a thermistor in an AC Wheatstone bridge circuit. The calorimeter was tested by measuring the heat of ionization of water and was found to produce data accurate to ± 0.1% where small samples are used such as in the investigation of many biological systems.