Next comes a chapter on evaluation of data, which is intended for presentation when the first laboratory results are submitted. This strikes me as a good idea, especially in these days of the ubiquitous hand calculator when students tend to forget the concept of significant figures.
A neat example calculation illustrates the origin of the familiar Gaussian curve for distribution of random errors. At this point, the third edition covers solubility equilibria and gravimetric analysis, followed by titrimetric analysis. Earlier editions had introduced here a section on chemicals, techniques and apparatus; in the third edition this section comes near the end, just before a concluding chapter, "Selected Methods of Analysis.
A logical transition from "classical" to "instrumental" is made through potentiometry and potentiometric titrations, and through electrodeposition and coulometry to polarography and amperometric titrations. T h e discussion of ion-selective electrodes, including solid and liquid membranes and gas-sensing electrodes is especially appropriate for the intended readership.
In future editions, it is suggested t h a t enzyme electrodes might be included. The classification of optical methods does not seem entirely logical. A chapter entitled "Absorptiometric Methods of Analysis" includes all regions of the spectrum and perforce includes a section on generation of electromagnetic radiation as well as radiation detectors, which are used both in emission and absorption measurements.
T h e other chapter on optical methods is entitled "Atomic Spectroscopy" and includes both emission and absorption methods. Atomic absorption is covered in both chapters. Finally, a chapter on analytical separations includes multiple extraction and chromatographic methods. It is not an easy matter to present analytical principles in an elementary fashion without doing violence to deeper understanding.
For the most part, the authors have succeeded admirably, but in a few cases, this reviewer would take exception. On page , in discussing the signs of half-cell potentials, the authors state that "the choice as to which potential will be positive and which will be negative is purely arbitrary; however, the sign convention chosen must be used consistently. It is not arbitrary that zinc metal is negative with respect to hydrogen, and indeed it is this feature that makes the IUPAC system intuitively attractive.
The Open Analytical Chemistry Journal :: Volume 2 -
Another example is in using the Nernst equation to calculate titration curves even for thermodynamically unstable and irreversible systems, such as in the region beyond the equivalence point of the permanganate-iron II titration. I believe an elementary presentation would be better restricted to reversible systems, or else t h a t further explanation is in order.
Such details aside, this is a book worthy of serious consideration for a one-semester treatment of quantitative analysis for nonchemistry majors.
T h e treatment emphasizes fundamentals, presents lots of good chemistry, and offers a selection of important chemical methods as well as an introduction to instrumental measurements. Larry Kavan, Robert N. Schwartz, Eds. T h a t it is used to provide information on molecular motion of the paramagnetic probe and on the structure and properties of its surroundings by time domain studies is less well known. In this volume of nine separately authored chapters, theory and experiment are firmly linked. Two chapters are devoted solely to the theory of the two principal methods of time domain studies, saturation recovery and spin-echo.
Other chapters are devoted to the methodology, experimental and theoretical, of topics in the framework of time domain: spin-lattice relaxation; intersystem crossing dynamics; spin-spin interactions; and molecular triplet states in zero field.
Although the parts of the book are separately authored, the volume reads almost as though it had a single author. T h e development is logical; each author shows, implicitly and sometimes explicitly, that he knows what the other parts are about and how his contribution fits in. T h e editors have gathered together a superb group of contributors. Each is well-qualified in his field and knows how to write. In the opening chapter James S.
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Handbook of Smart Materials in Analytical Chemistry, 2 Volume Set
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