Quadra Wash 2
Thorough and durable plate washing station
The Quadra Wash 2 workstation is a small footprint, self contained, automated microtiter plate washing station. The unit supports washing cycles with two different concentrations of buffered solutions, such as Phosphate Buffered Saline (PBS) and/or water. Dispense/aspirate volumes and rates are set with simple pressure/time adjustments allowing the user to program repeatable fill/dispense volumes at known rates with integrated volume check function, which provides feed-back for quality control. Two separate inputs are provided for buffered solution, used in the wash cycle. The solutions are contained in a 10 Liter pressurized (2 - 5psi) PVC bottle. The effluent from the wash cycle can be aspirated to, and retained in, an Autotrap. It can also be emptied to a waste disposal system by pressurizing the container from the Quadra Wash 2 control panel.
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The Quadra Wash 2
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The Quadra Wash 2 is available with two separate heads for 96 or 384-well assays. Both heads are based on a unique concentric wash/aspirate needle design which can be set up to a depth of 0.7 inches. The assay sits on a platform that can be programmed to move in an x/y pattern during an aspirate/dispense cycle to maximize well-bottom wash coverage. To ensure uninterrupted use, the modular design allows the user to detach and wash the polypropylene/stainless steel head between runs.
An optional microplate stacker is available to enable walk-away automation. The stacker will support up to 25 standard assays per run. The Quadra4 liquid handling workstation, Quadra Wash 2 and Autoseal together provide all the utility needed to automate an ELISA workflow for up to 25 plates per run.
The instrument is programmed via a simple integrated user interface. The user can program multiple “named” wash cycles of dispense, soak and aspirate time-pressure intervals - no external PC is needed. Each wash cycle can be programmed, saved and recalled from memory supporting walk-away automation.
Biochemical assays such as Sandwich enzyme-linked immunosorbent assay (ELISA)
Cell-based assays where weakly adherent cells are washed from an assay
Preparation of assays for Fluorescent Imaging Plate Reader (FLIPR) technology to measure Ca2+ flux in cells.
Preparation of assays for multimode reader for Luminescence, Fluorescence, and Absorbance.
Assay washer to remove adhered polypeptides