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Dionex GS50 Gradient Pump

Dionex GS50 Gradient Pump
Dionex GS50 Gradient Pump

Eluent Selection
Four different eluent components; each eluent can be proportioned from 0% to 100%


Dual-piston (in series), variable speed, 100 µL per revolution

Settable Flow Range

0.0 mL/min, or from 0.05 to 5.0 mL/min in increments of 0.01 mL/min. Note: The GS50 is optimized for operation at 1.5 mL/min or less

Proportioning Type

Low pressure

Compositional Range

0% to 100% in 0.1% increments

Gradient Linearity

Four concave, four convex, one linear

Flow Accuracy

<1% of set value or ± 2 µL/min, whichever is greater

Flow Precision


Compositional Accuracy

<± 1%

Operating Pressure

35 MPa (5000 psi), maximum

High Pressure


691 kPa to 35 MPa (100 to 5000 psi) in increments of 0.1 MPa (14 psi); trips instantaneously

Low Pressure Limit

0 to 34 MPa (0 to 4900 psi) in increments of 0.1 MPa (14 psi); a start-up delay prevents false tripping

Delay Volume

Low delay volume: <400 µL

Standard delay volume: <800 µL

Pressure Ripple

<1% at 13.8 MPa (2000 psi) and 1.0 mL/min

This Dionex GS50 Gradient Pump is in great condition. It has been tested at SpectraLab Scientific.

A 90 day warranty is included.

We are seasoned professionals in this area and we would be happy to have you speak with one of our experts here at SpectraLab.

Thanks for looking and we look forward to hearing from you!
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