Prepare wash method, Bio-plex handheld magnetic washer, Vacuum filtration using a vacuum manifold – Bio-Rad Bio-Plex Pro™ Human Th17 Cytokine Assays User Manual

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3. Prepare Wash Method

There are two methods of performing wash steps in the assay procedure:
magnetic separation and vacuum filtration. Compatible wash stations and
plate types are shown in the table below.

Magnetic Separation Using the Bio-Plex Pro or

Bio-Plex Pro II Wash Station

The wash station does not require calibration, however it should be primed
before use. For more information, refer to the Bio-Plex Pro and Pro II wash
station quick guide (bulletin 5826).
1. Install the appropriate plate carrier on the wash station.
2. Use the Prime procedure to prime channel 1 with wash buffer.

Bio-Plex Handheld Magnetic Washer

Place an empty flat-bottom plate on the magnetic washer by sliding it
under the retaining clips. Push the clips inward to secure the plate. Make
sure the plate is held securely. If needed, the clips can be adjusted for
height and tension. For detailed instructions, refer to the user guide
(item #10023087).

Vacuum Filtration Using a Vacuum Manifold

Calibrate the vacuum manifold by placing a standard 96-well flat-bottom
plate on the unit and adjusting the pressure to -1 to -3" Hg. In general,
100 ul liquid should take 3–4 sec to clear the well. For more detailed
instructions, refer to item #10005042.

Table 3. Summary of compatible wash stations and plate types.
Wash Method

Wash Station

Assay Plate

Magnetic separation

Bio-Plex Pro

Flat-bottom plate

Bio-Plex Pro II (use MAG programs)

Bio-Plex handheld magnetic washer

Vacuum filtration

Bio-Plex Pro II (use VAC programs)

Filter plate

Vacuum manifold (manual)

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