Inc., 555 Madison Ave., New York, N.Y. 10022 ι 28th National Meeting of Ameri can Association of Clinical Chemists. Aug. 1-6. Houston, Tex. Contact: American Association of Clinical Chemists, 1725 Κ St., N.W., Washington, D.C. 20006 I International Symposium on An alytical Chemistry in the Explo ration, Mining, and Processing of Materials. Aug. 23-27. Rand Afri kaans University, Johannesburg, Republic of South Africa. Contact: The Conference Division (IUPAC Symposium) CSIR, P.O. Box 395, Pretoria, 0001, Republic of South Africa. Page 1066 A, Oct. 1975 I 172nd National Meeting of the American Chemical Society. Aug. 29-Sept. 3. San Francisco. Contact: Meetings Dept., American Chemi cal Society, 1155 16th St., N. W., Washington, D.C. 20036 I 27th Meeting of the International Society of Electrochemistry. Sept. 6-11. Zurich, Switzerland. Contact: 0. Dossenbach, Technisch-Chemisches Labor ETHZ, Universitatstrasse 6, CH-8006 Zur ich, Switzerland I 3rd International Symposium on Analytical Pyrolysis. Sept. 7-9. Hotel CASA 400, Amsterdam, The Netherlands. Contact: Ria Priester,
FOM-Institute for Atomic and Mo lecular Physics, Kruislaan 407, Amsterdam 1006, The Netherlands. Page 682 A, June 1975 I Micro 76. International Symposia & Exhibition. Sept. 13-17. Wem bley Conference Centre, Wembley, London. Contact: Royal Microscop ical Society, 37/38 St. Clements, Oxford 0X4 1AJ, England I 1976 International Conference on Modern Trends in Activation Analysis. Sept. 13-17. Technical University Munich, Munich, Ger many. Contact: F. Lux, Institut fur Radiochemie der Technischen Universitat Munchen, D-8046 Garching, F. R. Germany. Page 958 A, Sept. 1975 I 14th Conference on Vacuum Mi crobalance Techniques. Sept. 27-28. University of Salford, En gland. Contact: A. W. Czanderna, Dept. of Physics, Clarkson College of Technology, Potsdam, Ν. Υ. 13676. Page 1260 A, Dec. 1975 I Third Annual Meeting of Feder ation of Analytical Chemistry and Spectroscopy Societies. Nov. 15-19. Philadelphia, Pa. Contact: Edward G. Brame, Jr., General Chairman, FACSS 1976, Du Pont Experimental Station, Wilming ton, Del. 19898. Page 1065 A, Oct. 1975
Short Courses ACS Courses. For more information, contact: Department of Educational Activities, American Chemical Soci ety, 1155 16th St., N.W., Washington, D.C. 20036. 202-872-4508
Carbon-13 NMR Spectroscopy Houston, Tex. Jan. 28-30. G. C. Levy, Paul Ellis. $190; ACS nonmembers, $230
Digital Electronics for Automation and Instrumentation Houston, Tex. Jan. 29-30. D. G. Larsen, P. R. Rony, or F. A. Settle, Jr. $240; ACS nonmembers, $280
Laboratory Safety: Recognition and Management of Hazards Philadelphia, Pa. Feb. 20-22. N. V. Steere, Maurice Golden. $190; ACS nonmembers, $230 Carbon-13 NMR Spectroscopy Cleveland, Ohio. Feb. 27-29. G. C. Levy, Paul Ellis. $190; ACS nonmem bers, $230
125 Years Craftsmanship
VARIABLE UV-VISIBLE
James Swift & Son Ltd., England presents new, unique
LIQUID CHROMATOGRAPHY
Quantitative POLARIZING MICROSCOPE
'V
DETECTOR
#
A superb optical system combines tradition and modern production techniques.
A highly stable and sensitive double beam system with 8 μΙ quartz flow cells and a detection capability between 0.001 and 2 A.U. permits the selection of precise wavelengths re quired to match the absorption characteristics of compounds separated by high or low pressure liquid chromatography. With the Schoeffel SPECTROFLOW SF 770 a band of fre quency between 200 and 630 ηπ\ at full sensitivity and without photodecomposition can be obtained. Accurate analyses at absorption maxima are now quickly possible. Limitation to work on or near absorption minima or on the shoulder of a spectral emission line or to detect via the intervening step of derivatization has been eliminated. Send today for com plete technical literature.
SCHOEFFEL A pleasure to use. Designed specifically for the chemical m i c r o s c o p i s t , m i n e r a l o g i s t a n d petrologist.
I N S T R U M E N T CORP. 24 Booker Street Westwood, N.J. 07675 (201) 664-7263 CIRCLE 1 9 1 O N READER SERVICE CARD
Hacker Instruments Inc.
Box 646 Fairfield, N.J. 07006 (201)226-8450
CIRCLE 9 4 O N READER SERVICE CARD