10 1260 Infinity Binary Pump User Manual
1 Introduction to the Binary Pump
Instrument and Operation
Instrument and Operation
Introduction to the Pump
The binary pump comprises two identical pumps integrated into one
housing. Binary gradients are created by high- pressure mixing. An
optional degasser is available for applications that require best flow
stability, especially at low flow rates, for maximum detector sensitivity.
Pulse damper and mixer can be bypassed for low flowrate applications or
whenever a minimal transient volume is desirable. Typical applications are
high throughput methods with fast gradients on high resolution 2.1 mm
columns. The pump is capable of delivering flow in the range of 0.1 –
5 mL/min against up to 600 bar. A solvent selection valve (optional)
allows to form binary mixtures (isocratic or gradient) from one of two
solvents per channel. Active seal wash (optional) is available for use with
concentrated buffer solutions.
Figure 1 Overview of the binary pump
Purge valve
Active inlet valve
Mixer
Outlet valve
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