Electronics for spectroscopists (Cannon, C. G., ed.) - Journal of

Electronics for spectroscopists (Cannon, C. G., ed.) H. W. Safford. J. Chem. Educ. , 1961, 38 (12), p A918. DOI: 10.1021/ed038pA918. Publication Date:...
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BOOK REVIEWS year students such as those studying reaction kinetics, determination of coordination numbers, polymerieation of phmphates, adsorption on Kieselguhr, Bare-Antibase reactions. A few new techniques me introduced (such as paper chromatography) a t appropriate places. The experiments in Group IV-b are rest,rieted to those compounds considered primarily inorganic. In the second section of this part the preparation and chemical properties of the metals and their compounds are combined with traditional HIS separation scheme. New techniques such as Ion Exchange, Complexometry, etc., are presented for those compounds where their application i s most appropriate. The author states that the purpose of the HIS scheme is not to identify the components, but t o separate them 8.6 pure compounds. Although this is stretching t,he point, the author does teach the student techniques necessary for success in trace analysis, rttdiochemieal separations and preparation of pure compounds. The last main part is devoted to qualitative analysis by micro and semimicro techniques. I t s first section demonstrates the use of specific organic and inorganic reagents for metal ions and includes a n introduction to spot plate techniques. The various types of reactions-alts, redox, complexation, etc., are described. This is followed by an analytical

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ttmpton University. There is a suggestion of inclusiveness in tho title, but rmission spectroscopists may be disappointed since their endeavors receive little direct attention except in portions of one r h e p t ~ r . Indeed, apparently because- of the interests of many who were involved in it? prepar~r tian, a large part of the book ip direrted toward those for whom a major concern is infrared spectrometry. On the dust cover appears this fitat,+ ment: "This book aims a t providing a eompl~tecourse for spectroscopists who wish to learn mmething about electronics or to bruah up their knonledge on the subject." For those r h o find themeelves in the "brush up" category and who vish to become more thoroughly informed about specific topics, there will prohahly he faund much that is helpful and satisfying. However, he who would "learn something about elertranies" should first look elseHANSB. JONASSEN where before he will be able to make efTdane Universily fective use of the material ureeooted here. .'few Orleans, Louisiana

scheme in an excellent condensed form. After it' series of preliminary testdame heating, the group separation involves among others the HNOs insoluble, HCI, reduction, thioacetamide, sulfate groups. The cations are identified by specific reagents, a short wetion on anions and insoluble substance identification is included. Short introductions to microscopic, trace end paper chromatic separation make up the rest. of this part. The author purposely does not discuss much of the theoretical aspects, but gives excellent references for these. The book should be of interest to American chemists because it demonstrates that German chemistry proiessors realize that changes in their beginning chemistry curriculum are long overdue. The reviewer also has found some of the sections of this hook quite helpful.

Electronics for S p e ~ t r ~ ~ ~ o p i s t ~

Edited by C. G. Cannon, ,British Nylon Spinners Ltd., Pontypool, England. Interscience Publishers, Inc., New York, 1960. viii 333 pp. Figs. and tables. 15 X 22 cm. $9.50.

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"Electronics for Speetrascopiats" represents tho proceedings of the I949 and 1950

current theory, wnplifiers, power supplies, and noise. The approach is largely mathemstical and would seem to presume some prior knowledge of basic ~4ertroniea and perhaps a bit of circuit theory. Relatively little appears that could not he faund in many other reference xorks and texts on electronics, hut there is an admitted advantage in having this material collected and presented adjncent to other topics of interest t o those who make m e of the techniques of absorption rpectros(Continued on page A920)

BOOK REVIEWS copy., ;Since 10 years elapsed between the in~tialpresentation of the unedited lectures and their appearance in bound form, it is unfortunate that certain chapters could not have been hrought up to date in their literature coverage generally, and with some mention of solid-state electronic devices specifically. A certain amount of useful informst,ion is to be found in the chapters entitled The Application of Semiconductors to the Detection of Radiation, Detector and Amplifier Systems in Infrared Spectrometry, Photoelectric Devices and Their Applieation in the Visible and Ultraviolet Regions, and Some Optical Problems. Two additional chapters are rather specialired: The Presentation of Infrared Spectra on the Cathode R s y Tube, with particular emphasis here being placed on the use of this technique in studying the kinetirs of rapid reactions, and Polarized-Beam Techniques in Infrared Spectroscopy and their value, a t least in simple cases, in determining approximate bond directions in a molecule. Each of these six chapters in the latter half of the book ia written by a different authority. The disadvantage of multiple authorship is st times apparent in the lack of uniformity of writing style, and in the scooe and level of diffieultv of t,he

tremely lucid manner of

pmsentation

shown there had extended to certain other portions of the hook. To continue in this vein might result in

as a-refereneework for the serious spectroscopist who wishes to learn more about the topics that are included, and certainly the somewhat less expert spectrometer user who is ahle to master the ms,terial presented will have reasonably thorough and useful grounding in electronics, for application not only to his work in absorption spectroscopy buL possibly to other research problems as well. Further, those in education who are responsible for incomoratine into the curriculum basic in-

H. W. SAFFDRD Universitf, qf Pittsburgh Pittsbwgh, Pennsglvania Chemical Properties a n d Identification of Ions: An Introduction lo Semimicro Qualitative Analysis

Omer K. Whipple, California. State Pol.vtechnic College, San Luis Obispo. Wsdsuwrth Publishing Co., Inc., San 310 Francisco, California, 1961. x pp. Figs. and tahles. 15 X 20 rm. Paperbound. $3.95.

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I n the preface of this little laboratory book the statement is made that "It is desianed particularly for use in the serond (Continued on page A9221

A920 / Journal of Chemicol Education