在全池量热计中，等温滴定量热法测量的物理意义。

On the physical meaning of the isothermal titration calorimetry measurements in calorimeters with full cells.

机构信息

Laboratoire de Thermodynamique des Solutions et des Polymères Université Blaise Pascal, 24, Avenue des Landais, Clermont Ferrand, 63177 Aubière Cedex, France.

Research and Development Branch on Flow Assurance, Mexican Institute of Petroleum, Eje Central Lazaro Cardenas 152, Col. San Bartolo Atepehuacan, Mexico City 07730, Mexico.

出版信息

Int J Mol Sci. 2009 Dec 9;10(12):5296-5325. doi: 10.3390/ijms10125296.

DOI:10.3390/ijms10125296

PMID:20054472

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC2801996/

Abstract

We have performed a detailed study of the thermodynamics of the titration process in an isothermal titration calorimeter with full cells. We show that the relationship between the enthalpy and the heat measured is better described in terms of the equation Delta H = W(inj) + Q (where W(inj) is the work necessary to carry out the titration) than in terms of DeltaH = Q. Moreover, we show that the heat of interaction between two components is related to the partial enthalpy of interaction at infinite dilution of the titrant component, as well as to its partial volume of interaction at infinite dilution.

摘要

我们在全池等温滴定量热计中对滴定过程的热力学进行了详细研究。我们表明，用方程ΔH = W(inj) + Q（其中 W(inj) 是进行滴定所需的功）来描述测量的焓和热之间的关系比用ΔH = Q 来描述更好。此外，我们表明，两个组件之间的相互作用热与滴定剂组件无限稀释时的相互作用部分焓以及其无限稀释时的相互作用部分体积有关。