Studying 13C without aVarian NMR Siystem is like trying to find the Lost Island of Atlantis with a snorkel. Until recently, the progress of 13C NMR research has been bogged down because there was simply no commer cially available system sensitive enough to do the job. Now there are four. All made by Varian. The 15MHz NV-14. The 25MHz XL-100. The 55MHz HR-220. And the 75MHz HR-300. In order to enhance sensitivity, our systems are available with both multiscan averaging and pulse Fourier transform systems. (We might mention here that we are the only company which makes rf pulse equip ment, associated computer and the NMR system.) Using any or all of our 13C NMR systems, you can study bigger and more complex molecules (such as those found in biomedical areas and synthetic polymers). And get the kind of information which is limited or simply unavailable using Ή NMR. Our systems also give you the ability to study tagged molecules, thereby adding another valuable tool to your research capability. That's a very quick rundown on four of the most sensitive 13C NMR systems in the world. All, of course, built by Varian. For complete details (including some represen tative spectra), just write: Varian, Analytical Instrument Division, Palo Alto, California 94303.
varian analytical instrument division
The New 15MHz NV-14. One of four Varian "C NMR systems.
CIRCLE 172 O N READER SERVICE CARD
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ANALYTICAL CHEMISTRY, VOL. 43, NO. 10, AUGUST 1971
