From Heath UV-Vis ...to fullAA-AE-AF capability in two low cost, modular steps:
step one: add the new Heath EU-702-70 module and get complete flame emission capability for only $835.00*
step two: add the EU-703-62 power supply . .$140.00* EU-703-61 chopper assembly $ 70.00* EU-703-60 turret assembly $130.00* and get complete AA-AE-AF capability for only $340.00* another example of how to save money while increasing capability... from the Modular Versatility People — Heath Company FREE HEATH SCIENTIFIC INSTRUMENTATION CATALOG Investigate these and other new ideas in Spectroscopy, Digital Instrumentation, Lab Equipment and Test Equip ment. Send for your FREE catalog now.
H E A T H
HEATH COMPANY, Dept. 560-01 Benton Harbor, Michigan 49022
a Schlumberger
company
Q Please send free Heath Scientific Instrumentation Catalog Name
—
__
Address. City
State
Zip
*Mail order prices; FOB factory. Prices & specifications subject to change without notice. EK-294
New Books
dures, and flow charts, and on inor ganic qualitative analysis. Quantitative relationships and measurements are em phasized. The experiments allow for considerable flexibility on the part of the instructor, permitting him to deter mine the order and level of sophistica tion of the material to be studied. Each of the experiments is self-contained and thereby designed to stimulate experi mentation by the student.
Analytical Chemistry of Zirconium and Hafnium. Anil K. Mukherji. xiii + 281 pages. Pergamon Press, Inc., Maxwell House, Fairview Park, Elmsford, Ν. Υ. 10523. 1970. $12
This book presents an up-to-date col lection and comparison of published re search results on the characterization and analysis of zirconium and hafnium. These two elements have interesting physical and mechanical properties such as corrosion resistance and mechanical strength of metals and alloys at both low and elevated temperatures. The aqueous chemistry of zirconium and hafnium has been discussed to draw at tention to the complications of hydroly sis and polymerization and their effect on analytical procedures. Classical methods such as titrimetric, gravimet ric, and absorptiometric are presented along with spectrographs, X-ray, and neutron activation methods. Tech niques for the separation of zirconium from hafnium also have been discussed.
Programmed Thermodynamics, Vol. 2: Entropy and the Second Law. Charles E. Wales, ix + 275 pages. McGraw-Hill Book Co., 330 W. 42nd St., New York, Ν. Υ. 10036. 1970. $5.95
This is a programmed text composed of a series of numbered sections; each section contains a linear sequence of questions and answers or frames, one or two problem sets, a multiple-choice selfquiz, and a set of content-performance objectives. These programs are de signed to be self-sufficient study mate rials which the student reads outside of class. Topics covered in this volume in clude : entropy, the second law of ther modynamics and reversible and irrever sible heat transfer, reversible and irre versible mixing processes, entropy rela tionships for real materials, using the thermodynamic transformations to ex tend state-property data, diagrams which show both S and H, and the gen eral energv balance.
Circle No. 85 on Readers' Service Card
58 A .
ANALYTICAL CHEMISTRY, VOL. 43, NO. 1, JANUARY 1971
Circle No. 19 on Readers' Service Card
