MlCROCHEMICAL
JOURNAL
41, 388-389 (1990)
BOOK REVIEWS
NMR Techniques and Applications in Gmchemistry and Soil Chemistry. By MICHAEL Pergamon Press, New York, 1987. xi + 353 pp., $63.00.
A. WILSON.
Chemists are aware of the applications of NMR measurements to solutions; however, many who are not experts in such measurements may suspect that NMR measurement of solids, if done at all, is something of interest only to polymer chemists. Thus, this book will be of considerable interest to those who are doing, or may be doing, NMR studies on solids. Information is provided on how to obtain and interpret the NMR spectra of materials which include the mineral silicates (e.g., the almninosilicates), plant and microbial remains (e.g., pine litter), polysaccharides, whole soil NMR, humic substances, oil shale, peat, coal, coal derivatives, and coal conversion products. Even though the coverage is slanted to geochemical problems, it could be considered just as well as a source for information on NMR measurements of solid organic and inorganic substances. The first chapter in the book introduces the reader to elementary concepts of NMR theory and their application to geochemistry. This is followed by a chapter on the techniques of NMR applicable to geochemistry, such as the required magnetic system, and additional considerations which include sample and probe conditions, setting of spectral width, acquisition conditions, pulse angle, and resolution enhancement. The next chapter treats solution NMR and is followed by a chapter that provides a complete treatment of solid state NMR. Included in this chapter are subjects such as means for the removal of dipolar interactions, chemical shift anisotropy, spin relaxations for i3C, isotropic chemical shifts in the solid state, etc. The following nine chapters treat, in detail, the NMR of matter such as that previously listed. The book includes excellent, appropriate references at the end of each chapter and has a complete index, which makes it easy to fmd information. A large number of applicable illustrations and spectra are included in each chapter. The book is well written; the subject coverage is very complete. It will be of benefit to chemists performing NMR measurements on either liquids or solids and of greatest interest to those having prior experience in NMR, an understanding of NMR theory, and an appreciation of the problems that are involved in performing NMR measurements on nonideal materials such as solids of geochemical interest. PETER F. Lorr Chemistry Department University of Missouti Kansas City, Missouri 64110
Troublesbooting LC Systems. By JOHN W. DYLAN AND LLOYD R. SNYDER. ton, New Jersey, 1989. viii + 515 pp., $65.00 (U.S.), $75.00 (export).
Humana Press, Clif-
This book provides exactly what the title promises-an easy to follow guide for troubleshooting problems with liquid chromatographic separation systems. While the book can be read cover to cover, it is more suited to use as a reference guide for isolating and finding solutions for problems affecting liquid chromatographic separations. Chapter 1 gives an overview of the book’s organization and a few general troubleshooting tips. While these tips are simple common sense suggestions, many workers tend to not follow these guidelines in their hurry to fm the chromatographic systems, so it is appropriate to include these reminders at this stage. Other sources of troubleshooting information are. also given in this chapter. Chapter 2 is the key chapter in this book. It basically consists of two tables designed to be used in tracking down the sources of chromatographic problems. The first table is 6 pages long, and gives guidelines for classifying problems in one of five problem areas-pressure, leaks, 388 0026-265X/90 $1.50 Copyright0 1990by Academic Au Ii&s
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