Jean-Louis Burgot – Ionic Equilibria in Analytical Chemistry (2012)

Автор: Jean-Louis Burgot
Название книги: Ionic Equilibria in Analytical Chemistry
Формат: PDF
Жанр: Химия
Страницы: 763
Качество: Изначально компьютерное, E-book

This book of general analytical chemistry – as opposed to instrumental analysis or separation methods – in aqueous solutions is focuses on fundamentals, which is an area too often overlooked in the literature. Explanations abound of the chemical and physical principles of different operations of chemical analysis in aqueous solutions. Once these principle are firmly established, numerous examples of applications are also given.

A lot of operations in chemical analysis are carried out in solution, in particular in
aqueous solutions. Because water is both a dissociating and ionizing solvent, the
chemical reactions occurring within it are generally ionic reactions. From another
standpoint, in order to obtain valid analytical conclusions, the chemical reactions
proposed to perform the analysis must be carried out until their term, that is, until
their equilibrium has been reached.
One of the great interests in the analytical chemistry practiced in aqueous solutions
lies in the fact that it can be quasi-systematically described by mathematical
equations, which can be grouped themselves in mathematical systems, systems being,
in principle, always determined. Because they are not so easily soluble, they
induce the use of informatics or the adoption of pertinent simplifications. Without
any doubt, adopting pertinent simplifications is a difficult task for anybody who has
not thoroughly mastered the discipline. Therefore, in my opinion, it is imperative,
systematically, to write first all the equations describing the phenomena in solution
that must be satisfied. Next, one or several simplifications may be made according
to the conditions of the experiment. The results of the calculations issuing from the
preceding simplifications can then be challenged experimentally in the third stage.
This methodology constitutes the heart of this book.
Briefly, it is the fortunate balance existing between the theoretical aspects resulting
from the mathematical equations governing the phenomena and the purely
experimental aspects that confer the great academic interest on analytical chemistry
in aqueous solutions. Therefore, analytical chemistry appears to be as close to pure
physics as to chemistry. Furthermore, the IUPAC classifies analytical chemistry in
the realm of physical chemistry. It is one of the goals of this book to provide an
example of such an assertion.
Analytical chemistry consists of studying the physical and chemical phenomena
that are applied in chemical analysis. Hence, the two disciplines should not be
confused. However, in this book, numerous examples coming, of course, from the
realm of chemical analysis are given in order to illustrate the principles of analytical
chemistry that are studied. These examples are taken from the fields of inorganic
and organic chemistries and even from that of biochemistry. Finally, a large place is
given to the analysis of pharmaceutically active ingredients. I particularly want to thank Professor Maurice Bernard, honorary dean of the
faculty of sciences of Caen, for having introduced me to and helped me into this kind
of chemistry. I do not forget the very fascinating time during which I worked with
him. I also thank my wife, Gwenola Burgot, professor of analytical chemistry in
the faculty of pharmacy of the University of Rennes I, who, of course, immediately
understood the interest in such a book and who has always encouraged me to continue
the great task that was its writing. I still thank Gabriel Gorre, holder of the superior
chair of physics in the Lycee Joliot-Curie of Rennes, for his thorough reading of the
manuscript.
My great thanks also go to André Le Goff, who was one of my English teachers
in school. He has considerably helped me in the translation of the French version of
this book into the English one. My English needed his help!
Finally, I also thank Annick Simon-Malard for the diligency and devotion she
exhibited during the preparation of the different versions of this book.
Last but not least, I dedicate this book to James Newton Butler, professor of
chemistry in the division of applied sciences at Harvard University, for the book he
wrote in 1964 entitled Ionic Equilibrium, a Mathematical Approach. My book has
only the pretense of being a continuation of his masterpiece in analytical chemistry