Modern Methods of chemical Analysis

College of the Holy Cross. Worcester, Mass. 01610. Inorganic Qualitative Analysis. Richard B. Hahn, Wayne State Univer- sity, and Frank J. Wricher, In...
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At the pmposed level of stt~dent.t,raining, this preciorts space might bc d o t t e d to ot,her chemical topics such as chemical equilihl.iwn ns a ~peeinltopic. The mviewer tl.ensures this book as a refel.ence work and priaes especially t,he exercises contained in it.

would have been well served by the inclusion of atomic absorption spectrophotometry and electron probe mieroanalysir. There is no other volumetric chemistry than Briinsted acid-b~qe; and no diucussion of membrane ("specific-ion") electrodes other than glass. This book may be attacked by some B. A. F ~ l i ~ ~ : n swith orthodox viewpoints. I t omits College of the Holy Cross gravimetry and the techniques of vohtI170rces/er, Mass. 01610 metry on the theory that a modern freshman laboratory provides sufficient groonding in these. I t is not a typical instrumental analysis text (nothing on statistical inorganic Qualitalive Analysis design of experiments, on electronics, or on principles of instrumentation). The level Kichald N. Hahn, Wayne State Univerof presentrttion is low considering the sity, and Prank J . Weleher, Indiana sophisticated aibject matter. Taken on University. 2nd ed. 1). Van Nostrand its own terms, the text is innocent of the Company, Inc., Princeton, New Jersey. first two charges. I t is intended neither 326 pp. Figs. and tables. 15 X viii cu a tradit,ional "quant!' text nor as a 22 cm. 86.40. traditional instrumental analysis text, but a? a sui generis re-thinking of the needs of This second edition is s, considerable mkdergraduste chemists for analytical improvement of the fimt edition (see J. chemistry. The reviewer is in sympathy CHEM.EDUC., 40,442 (1063)). I t is now si with this approach. quite satisfactory text and manna1 for However, given the goal of making qr~alit,ativeanalysis as it is taught in many truly modern instrumental techniques fl.eshmnn chemistry conrses. comprehensible to tmly typical sophaThe treatment of the calcrdation of the mores, a much mare careful job than thik hydrogen ion eoncentralion of sodium book is required. In an undergraduate hicarbonate solutions is still not correct,. text, whet you say is not much more In fact, following the instructicns an the important than how you nay it. M y bot,tam of page 8: and top of page 86 complaints fall into two categories: would lend one to pH of 10.3 for a 1 M (1) outright errors, which may he inevitaNaHCO. snlntion, while it is well known ble in s first edition; and (2) aversimplito be 8.33, and nearly as well known that fications and careless writing. t,he hydlogeu ion molarity of an amphiConsidering the rango and complexity protic ion sol~ttion,snch as bicarbonate, of the topics treated, this reviewer was not is given by klkrfor carbonic acid, rmless able to find a large number of substantive the concentration is very small. errors. A modest collection includes the This is the only f a d t I e m find in the %sert,ion that one cannot mecuure thefugapresent edition, and it does not serionsly city of a real ga?; the definition of the mar the total effect of the book. chemical potential as the free energy per mole (Gln); and the inevitable use of the College of SI. Thomas HrI. reaction as an example of one wibh St. P a d , Alinnesola a simple mechanism, despite evidence to the contrary. Much more serious than the above rather minor mistakes is a chronic unModern Methods of Chemical Analysis willingness to face the difficult problem of truly simplifying or summarizing camR. I,. Pecsok, University of California, plex ideas. The tone of too many of the Las Angeles, and I,. Donald Shields, summaries in this book i hasty ("the Ca1ifonli.z State College, Fullert,on. most efficient boner for any system eonJohn Wiley & Sons, IIIC., New York, sistr of 8. 1:1 ratio of a weak acid or base 480 pp. Figs. and tables. 1968. xvi to it,%conjugate base.") and opaque. Fur 17 X 24.5 em. $O.0>. example, in a two-page explication uf thel.modynamics, tho (2ibb.i free energy The appearance of this book as rs %xt . . a t the sophomore level" cmsos mixed is introduced and "explained" w a. combination oi the (i~ndefined)enthalpy and feelin@. The study, if not the practice, entropy, (Il-'1's). The next sentence of modern analytical chemistry seema to brings in the activity. I t is hard to conbe left by defar~ltto the chemistry majors ceive of a student who is familiar with If who constitute a minority of sophomore and S, but not with G ; or of one unfamiliar chemistry students. Scientists in other with any of those who could make moch fields, more than many chemist*, have of the presentztion given. The magnetic considerable rue for "modern methods of moment, p, appears in the sectibn before chemical snalysis." The present text the one in which i t is identified; the attempts to meet this need, particularly Boltzmsnn distribution is invoked withfor the biochemically inclined. The atout comment or explanation; the eontempt is not entirely snccessful. cepts "ligand field strength" and "conTopics covered include such strangers centration of electrons" are used, in to "quant!' as ext,raet,ian and chromatoquotation marks, without any comment graphy (3 chapt,ers), spectroscopy, ina t d l . I t is not a legitimate simplification cluding nmr (5 chapters), mass speetrothat hits only the high spots of a complex metry, and radiochemistry, in addition concept, but retains in its 1ctngun.g~such to the more traditional olectrochcmistry loaded terms ss ligrtnd field strength, and acid-base equilibria. (aqueous and Entropy, or the Bolt,smann distribution non-aqneous). Fnturc earth and marine seienl.istx, as well ax future biochemists, when these are not relat,ed by the author.

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Jovrnol o f Chemical

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particular course with a particular lebaratory text (the authors' companion vohlme, "Experiments In Modern Methods Of Chemical Analysis"). For example, Chapter 18 is a wholly orthodox, low-level treatment of chemical kinetics, with only the barest clues to its relevance to the rest of the text. However, in the laboratory text this material is applied to an enzyme kinetics experiment. The chapter in the text is there to ilhminate the laboratory, and is not really meant to sband on its own. Otherwise, i t would be difficult to justify its inclusion in a text on chemical analysis. This book, one hopes, begins a new departure in undergraduate texts in analysis; much important infarmstion is correctly presented; but the authors have forfeited the opportunity to write e classic text by their proneness to careless writing. T H O M R. . ~ BLACKBURN Hobart and William Smith Colleges Gaeua, New York 14466

Kinetics in Analylical Chemirlry Hamy l3. Mark, 57.) University of Michigan, Ann Arbor., and Carr.?, A . Rechnitr, State University of New York, Buffalo, with the assistance of Ronald A . Creinke, Universit,y oi Michigan. John Wiley & Sons, Inc., Now York, 1068. x 339 pp. Figs. and tahleq. 16 X 23 cm. 816.!1;.

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This book deals primarily wibh t,he principles underlying the utilization rrf kinetic informat,ian far the solution of analyt.ical problems. Two points of view are emphasized. The first is bhnt kinetic ur reaction-rate meaxnroments can be w e d

or new equilibrium methods. The fil.st two chapters in the book are brief and inl,~.oductory in natrwe. The first presents a one sided view of the advantages of kinetic methods relative to equilibrium melhods, while the necand pvewnts a brief disewsion of t,he more common met,hods f o ~measuring reaction rates. Chapter three presents a cursory t,reabment of t,he applicalion of catalytic react,ions for ynxntitative analyses. Examples discnssed include inorganic oxidation-reduction reactions, enzymatic reactions, and ligand exchange reactions. Chapters four and five contain an extensive listing and discussion of methods developed over the I& two decades for single and multiple component analyses nsing slow organic functional-group reactions. The chapters deal primarily with the mathematical and graphical manipulntion of common rate expressions to yield forms explicit in concentration. The relative merits of bhe different approaches are compared. Chapter six contains a brief discussion of facbors affeet,ing the kinetics of organic reactions along with an extensive tabulation of rate constants for a wide variety of reactions. This (Cmtinued on page A.374)