Automated HPLC liquid handler

Thursday, 08 December, 2005 | Supplied by:

The Gilson GX-281 Liquid Handler brings flexibility and performance to front-end automation in the laboratory. The GX-281 is specifically designed for semipreparative-to-preparative HPLC applications.

The GX-281 solvent delivery system features selection of up to five solvents. The precision dispensing eliminates the need to change syringes to accommodate different volumes and flow rates, and does away with maintenance issues commonly associated with syringes and their limitations.

The GX-281 can be configured with multiple injection valves which can accommodate flows of up to 200 mL/min. The continuous flow path design on all injection valves eliminates over pressure problems, even as the injection valve switches from load to inject. This technology ensures a more consistent pressure and flow.

The Z-arm mounted direct injection module features an injection port that is integrated into the valve, which removes a source of potential carryover. Higher productivity can be seen in the laboratory as this reduces rinsing times, sample waste and X/Y travel for faster injection cycle times.

Fractions are never contaminated from the injection process, as the GX-281 features separate injection and collection pathways. A rinse station system includes a high flow rinse pump, providing fast and efficient probe cleaning with up to six rinse solvents.

Consuming 825 mm of linear bench space, the efficient and open bed design holds up to six Code 200-Series racks (up to 576 13 mm test tubes), as well as the custom racks.

The GX-281 can be controlled by Gilson's Trilution LC Software, giving complete control over every aspect of the liquid handler while simplifying system, task and method set-up. The advanced fraction collection capabilities of Trilution, combined with the hardware of the GX-281, provide the ultimate in injection, fraction collection and reinjection for the user's HPLC needs.

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