Alpha Analytical Laboratories, Inc

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Books ing, and encapsulation of samples; spectrometry; multielement determi­ nations; the Carlo Erba automatic gas chromatographic analyzer; and ashing of samples. The remainder of the book gives specific details on the determi­ nation of carbon, hydrogen, and nitro­ gen; carbon, hydrogen, nitrogen, and sulfur; nitrogen; oxygen; sulfur; fluo­ rine; sulfur and fluorine; chlorine, bro­ mine, and iodine; and phosphorus and phosphate. Methods for the determi­ nation of these elements at both com­ positional and trace concentration lev­ els are described. The table listing the properties of the described methods is useful; it gives sample weights, limits of detec­ tion, and optimal amount of element in the analysis. Unfortunately, preci­ sion and accuracy are not listed or dis­ cussed at any other point in the text. The methodology described in this book should be carefully considered by analytical chemists setting up a new laboratory. For those laboratories already functioning, the book can serve as a reference to help judge whether a change in methodology is indicated. Thus, the author probably meets his goal of benefiting both the

research and industrial analytical chemist. Automated Stream Analysis for Process Control. Vol. 1. Dan P. Manka, Ed. Academic Press, 111 Fifth Ave., New York, N.Y. 10003. 1982. $39.50. Reviewed by J. Gulens, Atomic Ener­ gy of Canada Ltd., Chalk River Nu­ clear Laboratories, Chalk River, On­ tario KOJ1J0, Canada This book is intended for the indus­ trial chemist or chemical engineer who is considering the installation of an on-line analyzer. The editor (as stated in the preface) intends to show that "there is much more to analyzing a process stream than finding a suitable method," and that due attention must be given to the sample itself: where it is taken, how it is filtered, condi­ tioned, and then transported to the analyzer. The book is reasonably suc­ cessful in achieving this goal; many of the contributing authors have devel­ oped and applied automated process analyzers and thus provide expert comments on practical problems of sampling, calibration, operation, and maintenance. The value of this volume lies in its

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emphasis, with a few notable excep­ tions, on the practical aspects of auto­ mated stream analysis, while at the same time providing an adequate ex­ planation of the principles of opera­ tion of the analyzers. T. E. Miller, Jr., presents applications of ion chroma­ tography to process control and in­ cludes an excellent section that em­ phasizes sample handling and condi­ tioning. One rarely reads what must be done to convert laboratory instru­ ments to continuous-process analyz­ ers, but this has been accomplished by J. P. Hackett and G. A. Gibson for gas chromatographs on coal gasification or liquefaction projects, or for even more sophisticated instruments such as AA spectrometers in nuclear power plants (G. B. Gpckley, M. C. Skriba). R. A. Mowery, Jr., in discussing the application of liquid chromatography to process control, emphasizes the dif­ ference between laboratory and pro­ cess requirements and instruments. Various analyzers available for contin­ uous analysis of flue gases from pulp and paper mills are surveyed (T. L. de Souza). In three brief chapters D. P. Manka discusses in turn oxygen analyzers in coke oven gas, IR analyz-

Complete, New Catalog of Highest Quality Reference Materials Our new catalog of high­ est quality reference materials includes all of the following: • Solid Spectrochemical Standards (ferrous and non-ferrous) • Aqueous Solution Standards • Organic Solution Standards • High-Purity Materials Every reference material meets Alpha's rigorous quality assurance specifications. Phone or write for your free copy. Alpha Analytical Laboratories, Inc. A Division of Alpha Metals, Inc. 600 Route 440 Jersey City, Ν J 07304 201-589-7150

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ANALYTICAL CHEMISTRY, VOL. 56, NO. 6,

MAY 1984 · 741 A