Books view could be improved. The begin ning student is likely to be confused by several tables (page 146, for exam ple) t h a t include an unusual symbol for zero and an Ε without explanation or comment. The symbol beta is wide ly used elsewhere to denote overall formation constant in complexation; the use of beta (instead of alpha) to denote fraction in this same field is likely to lead to confusion. Unfortu nately, the section on potential is writ ten in such a way t h a t all the formal ism associated with ambivalent emf is required, whereas the advantages of the simplicity of the sign invariance of potential are ignored or misunder stood. The numerous Gaussian-type curves usually are drawn to show a point at the maximum rather than a smooth curve. For the purpose stated, this book should serve the student well, and at a reasonable price.
THE MOST ADVANCED POROSIMETER EVER DEVELOPED!
SCANNING POROSIMETER*
Books Received Current Developments in the Clinical Applications of HPLC, GC, and MS. A. M. Lawson, C. K. Lim, W. Richmond, Eds. xv + 301 pages. Academic Press, 111 Fifth Ave., New York, N.Y. 10003. 1980. $49.50 CRC Handbook of High Resolution In frared Laboratory Spectra of Atmo spheric Interest. David G. Murcray, Aaron Goldman, Eds. 282 pages. CRC Press, Inc. 2000 N.W. 24th St., Boca Raton, Fla. 33431. 1981. $49.95
Quantachrome's revolutionary new continuous S C A N N I N G POROSIMETER® is faster, gives more resolution and information with more ease, versatility, reli ability and safety than any other mercury porosimeter ever made. In virtually every meaningful way the S C A N N I N G POROSIMETER out performs any competitive in strument.
CRC Handbook Series In Inorganic Electrochemistry. Vol. 1. Louis Meites, Petr Zuman, Ananthakrishnan Narayan an, Theodore L. Fenner, Jarmila Jandik, George A. Shia. 503 pages. CRC Press, Inc., 2000 N.W. 24th St., Boca Raton, Fla. 33431. 1980. $69.95
C o n t i n u o u s scanning provides infinite resolution of the intrusion and extrusion curves f r o m vac u u m t o 60,000 PSIA. This unique patented* feature is not o b t a i n able o n any other porosimeter.
Advances in Heterocyclic Chemistry. Vol. 27. A. R. Katritzky, A. J. Boulton, Eds. ix + 331 pages. Academic Press, 111 Fifth Ave., New York, N.Y. 10003. 1980. $49.50
Unlike other automated p o r o simeters the S C A N N I N G P O R O SIMETER provides continuous
Advances in Mass Spectrometry. Vols. BA and 8B. A. Quayle, Ed. xxxiv + 1066 pages; xix + 909 pages, respec tively. Heyden & Sons, Inc., 247 South 41st St., Philadelphia, Pa. 19104. 1980. $348/set Line Coincidence Tables for Inductive ly Coupled Plasma Atomic Emission Spectrometry. Vols. 1 & 2. P. W. J. M. Boumans. xxi + 459 pages; vii + 474 pages, respectively. Pergamon Press, Inc., Maxwell House, Fairview Park, Elmsford, N.Y. 10523. 1980. $250/set
curves, not just a few data points w h i c h can miss significant pore structure. Other automated p o r o simeters can not build the e x t r u sion curve nor d o they provide t h e option of stepwise or c o n t i n u o u s data acquisition.
Volume & Area distribution functions, cumulative volume, surface area, slope a n d percent volume functions are all c o n t i n uously plotted with a degree of resolution that permits analysis of p o r e s t r u c t u r e n e v e r b e f o r e seen or believed possible.
For more information about this remarkable new instrument, all of its advantages, too numerous to mention here, c o n t a c t . . .
QUANTACHROME
CORPORATION POWDER INSTRUMENTATION Six Aerial Way, Syosset, NY 1 1 7 9 1 · 516-935-2240 • P a t e n t #4,170129 Telex: 4 2 2 6 2 0
CIRCLE 165 ON READER SERVICE CARD ANALYTICAL CHEMISTRY, VOL. 53, NO. 7, JUNE 1981 · 883 A
