Gas-phase optrode measurements of oxygen in calorimetric vessels

被引：5
|
作者：
Itoga, Nathan K. [1 ]
Hansen, Lee D. [1 ]
机构：
[1] Brigham Young Univ, Dept Chem & Biochem, Provo, UT 84602 USA
来源：
THERMOCHIMICA ACTA | 2009年 / 490卷 / 1-2期
关键词：
Isothermal calorimetry; Oxygen optrode; Kinetics; HEAT; ELECTRODES; CO2;
D O I：
10.1016/j.tca.2009.01.002
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Simultaneous measurements of oxygen and heat rates are useful for the determination of thermodynamics and kinetics of metabolic and chemical reactions involving oxygen. Optrodes have not previously been used to measure oxygen inside calorimetric vessels. The optrode used in this study produces <2 mu W and can be used to make measurements in both gaseous and aqueous systems. An external syringe injection of air was used to calibrate the optrode, and zinc-air batteries were used to evaluate the system. Data on maple leaf buds were collected to demonstrate application to respiration measurements. (C) 2009 Elsevier B.V. All rights reserved.
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页码：78 / 81
页数：4
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