Precision syringe pumps for reactant feeding, SFC, SFE, FAB, microbore LC Because Isco syringe pumps feature high calibration accuracy and no detectable flow noise or pulsation, they'll outperform any reciprocating pump in applications requiring high precision at very low flow rates. There are three versions to choose from, so you don't have to compromise your project conditions. Pressure limits range to 10,000 psi; flow rates from 0.02 μ,Ι/min to 6.67 ml/min; and capacities to 500 ml. These pumps offer fast pressurization that reduces equilibration time from hours to seconds. Their motorized refill/purge functions can be completed in less than five minutes. All three pumps include interfacing for computer control. The 50-ml model has a constant pressure mode and works with Isco PC-based software that gives you pressure and density gradient programming for SFC. For more information, call toll free (800)228-4250, or write: Isco, Inc., P.O. Box 5347 Lincoln, NE 68505.
ISCO
CIRCLE 72 ON READER SERVICE CARD
722 A • ANALYTICAL CHEMISTRY, VOL. 61, NO. 11, JUNE 1, 1989
