Complete gradient solvent delivery system for the price of a pump Gradient Programmer The programmer module stores 10 binary or ternary gradients of up to nine segments each. Couple it with an Isco pump for a sophisticated solvent delivery system, or use it with your present pump to economically upgrade an existing isocratic chromatograph. The Model 2360 works with practically any pump available and does not need helium sparging.
Programmable Pump The Model 2350 pump can automatically change flow rates after an elapsed time or delivered volume to speed up your separation, improve sensitivity, flush the column, etc. Multiple head options give you analytical, preparative and inert capabilities. Programmable limits protect against leaks and column blockage. A builtin injector and column compartment eliminate clutter and protect columns from temperature fluctuations or mishaps.
A six-segment binary gradient profile including column re-equilibration segment
These instruments give you an outstanding solvent delivery system at a total cost less than many isocratic pumps alone. For more information, call toll-free (800)2284250; or write: Isco, Inc., P.O. Box 5347, Lincoln, NE 68505.
ISCO
CIRCLE 72 ON READER SERVICE CARD
674 A • ANALYTICAL CHEMISTRY, VOL. 59, NO. 10, MAY 15, 1987
