polarimetry simplified
ISCO's new tunable monitor detects sizars to cytochromes
the autopol series by rudoiph research Only two controls are needed to operate the Autopol, power and reset, all other functions are completely automatic. Rudolph's automatic polarimeters and saccharimeters offer wide range, high precision design and construction at a reasonable price. Send for more information today. Call or write Rudolph Research, 40 Pier Lane, Fairfield, N.J. 07006 201/227-6810.
...and everythiri3 in between Continuously variable wavelength selection from 190 to 620 nm lets you match wavelengths to the absorption characteristics of a wide variety of compounds. In fact, with its ability to detect in the UV below 254 n m , the Model 1800 enables you to analyze many samples not usually thought of as UV-detectable—amino acids and certain carbohydrates, for example. Detector sensitivity can be maximized by choosing the o p t i m u m wavelength for a particular compound to be analyzed. Or, selectivity can be increased by using a wavelength at which interfering solvents or impurities do not absorb. A 10 mm pathlength flow cell and an exceptionally fast response speed allow you to separate small, sharp peaks easily. In addition, the high-performance, small-volume cell is temperature equilibrated to minimize instrument noise. Reliable measurements are enhanced by low baseline drift, achieved with unique referencecompensated optics that combine high energy throughput with stability. Controls are simple. Wavelength, range, and baseline are the only adjustments necessary. A n event marker is provided to record injections. And of course, the Model 1800 connects easily to any ISCO recorder, fraction collector, or pump to give you an integrated liquid chromatography system. For more information on ISCO absorbance monitors and other instruments, send for your free catalog today. Or dial direct, toll free: (800) 228-4250 (continental U.S.A. except Nebraska). Instrumentation Specialties Company, P.O. Box 5347, Lincoln, Nebraska 68505.
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