REPORT
stantly appearing new and imagi native variants on the method that will continue to widen its applica bility. Specific
only the QV-50/shimadzu Spectrophotometer has all these features Range—the versatile, general purpose QV-50 is measurable as far as the extreme u.v. region of 183 mw, to the near infrared region of 1,200 my. High Resolving Power—in the far U.V., visible =*nd near I.R. regions. Minimized Stray Light—as shown by the graph, the vacuumed monochromator greatly reduces stray light. Potentiomeiric Measuring Circuit—provides high accuracy of measurement, (especially as needed for rotatory dispersion, circular dichroism, etc.) free from non-linearity of indicating instruments and amplifiers. Compact & Ultra Stable Power Supply— especially necessary for stability in making measurements with flow dichroism, optical rotatory dispersion, and circular dichroism. Power supply is partially transistorized for cool operation and long component life even under continuous-duty operation. Adaptable—change-over to direct reading system can be easily made. Economical—with dichroism accessories, the QV-50 provides highly accurate measurements at one-fifth the cost of instruments giving comparable performance. FREE BOOKLET fully describes the operating features, comparative advantages and complete line of accessories of the versatile QV-50. For your copy, write:
COSMOS SCIENTIFIC CO. 921 B e r g e n Ave., J e r s e y City, N.J. 07306 · (201) 925-1101 Stocking Ace Scientific Supply Co. Linden, New Jersey
& Servicing
Preiser Scientific Co. Charleston, West Virginia
Dealers: Physicians & Hospital Supply Co. Minneapolis, Minnesota
U b A L b n INUUIrllCO IN VII CU Circle No. 104 on Readers' Service Card
38 A
·
ANALYTICAL CHEMISTRY
References
(1) W . Tsang, J. Chem. Phys., 40, 1171 (1964); 44, 4283 (1966) ; 46, 2817 (1967). (2) G. T . Skinner, Phys. Fluids, 4, 1172 (1961). (3) J . Kiefer a n d R . Lute, J. Chem. Phys., 44, 658, 668 (1966). (4) K . L . Wray, item 5 in the Bibliog raphy. (5) K . L. W r a y , J. Chem. Phys., 44, 623 (1966). (6) R. Hartunian, W. Thompson, and E . Hewitt, / . Chem. Phys., 44, 1765 (1966). (7) G. Burns a n d D . F . Hornig, Can. J. Chem., 38, 1702 (1960). (8) J . N . Bradley and R . Tuffnell, Proc. Roy. Soc. (London), A280, 198 (1964). (9) K . L. Wray, J. Chem. Phys., 38, 1518 (1963). (10) E . Fishburne and R. Edse, J. Chem. Phys., 44, 515 (1966). (11) B . P . Levitt, Trans. Faraday Soc, 59, 59 (1963). (12) H . A. Olschewski, J . Troe, and H . Gg. Wagner, Eleventh Symposium (In ternational) on Combustion, T h e C o m bustion Institute, Pittsburgh (1967), p . 155. (13) W . S. W a t t , P . Borrell, D . Lewis, and S. H . Bauer, / . Chem. Phys., 45, 444 (1966). (14) G. L. Schott, / . Chem. Phys., 32, 710 (I960); C. W . H a m i l t o n a n d G. W . Schott, Eleventh Symposium (Interna tional) on Combustion, T h e Combus tion Institute, Pittsburgh (1967), p . 635. (15) D . L . Ripley and W. C. Gardiner, / . Chem. Phys., 44, 2285 (1966).
Bibliography Papers
or book
chapters
(1) H . B . Palmer, " T h e Shock Tube as a Tool in Fuel a n d Combustion R e search," J. Inst. Fuel, 34, 359 (1961). (2) S. H . Bauer, "Chemical Kinetics in Shock Tubes," Science, 141, 867 (1963). (3) S. H . Bauer, "Shock Waves," in An nual Meviev; of Physical Chemistry, 16, Annual Reviews, Inc., Palo Alto, Calif. (1965). (4) H . B . Palmer, "Chemical Kinetics and Hypersonic Flow," in Fundamen tal Phenomena in Hypersonic Flow, J . Gordon Hall, Ed., Cornell University Press, Ithaca, Ν . Υ. (1966). (5) K . L . Wray, " N e w Experimental Techniques for Kinetic Studies in Shock Tubes," R e p t . A M P 232, Avco E v e r e t t Research Laboratory, Everett, Mass., July (1967). (6) R. A. Strehlow, "Detonation and the Hydrodynamics of Reactive Shock Waves," Preprints, D i v . of Fuel Chem istry, Am. Chem. S o c , 11, N o . 4, Sep tember (1967), p . 1. (7) S. H . Bauer, "Shock F r o n t Structure •—A Chemical Kinetics View," Ibid., p . 59. Books (1) A. Ferri, Ed., " F u n d a m e n t a l D a t a Obtained from Shock-Tube Experi ments," Pergamon Press, Long Island City, Ν . Υ. (1961).
