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Choosing your Graduate School? Find out which schools are concentrating in your area. Involved in Research? Learn what papers your colleagues are writing in your field.
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5w Ion Chromatograph Ion chromatography, a new technolo gy based on a unique combination of established techniques, is a very pow erful analytical tool for the precise measurement of a large number of ionic species. It can be utilized rou tinely in potable water analysis, waste water analysis, and industrial effluent monitoring. Easily employed to follow reactants and products in aqueous re actions, it is an ideal technique for chemical and biochemical research. It is also well suited for industrial pro cess control and for the assessment of product purity. The three basic tech niques employed in the ion chromato graph are ion exchange, eluent sup pression, and conductimetric detec tion. Dionex Corp. 404
UV-VIS Spectrophotometers
G. F R E D E R I C K SMITH CHEMICAL COMPANY 867 McKiniey Ave. Columbus.Ohio 43223 foi
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The SP6 Series of spectrophotometers offers simplicity of operation with color-coded controls and analog or digital display of linear transmittance, absorbance, and concentration. A 1.0 A back-off facility enables the absorb ance of samples above 2 A to be esti mated without the need to dilute or change pathlength. Accessories avail able include test tube holder, constant temperature cell holder, a four-posi tion manual cell changer, and a lowvolume, rapid autocell accessory. Pye Unicam Ltd., York Street, Cambridge, England
The Directory of Graduate-ι n-jc Research lui υ Comprehensive listing of U. S. and Canadian Universities offering doc toral programs in chemistry, chemi cal engineering, biochemistry and pharmaceutical/medicinal chem istry including detailed information on research professors and their publications. Whether y o u are a recognized author ity in y o u r field, just a b o u t t o start y o u r graduate study, or c o n c e r n e d w i t h re search in c h e m i c a l science, it is vital f o r you t o k n o w w h o is w o r k i n g in y o u r area, w h a t they are d o i n g , and w h e r e they are d o i n g it. The Directory of Graduate Research lists c o m p l e t e i n f o r m a t i o n o n universi t i e s - d e t a i l s o n professors, the papers they have p u b l i s h e d , t h e i r areas of specialization. For added c o n v e n i ence, individual researchers are also listed alphabetically and individual t e l e p h o n e n u m b e r s are included in m o s t cases. Researcher or graduate student, you w i l l find this comprehensive, 805-page, 81/2 χ 11 v o l u m e one of the best invest ments y o u can make. The cost is j u s t $20.00 To order y o u r new 1975 copy, call: (202) 872-4364, write or mail the c o u p o n below. Dept 102 American Chemical Society 115516th Street, N.W. Washington, D. C. 20036
Research. 1975 Edition @ $20.00 a copy. Affiliation (if any) Address: D Home D Organization
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