Run the assay, Considerations, Considerations when using a vacuum manifold – Bio-Rad Human Metabolic and Hormone Assays User Manual

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6. Run the Assay

Considerations

n

Bring all assay components and samples to room temperature before use

n

Use calibrated pipets and pipet carefully, avoiding bubbles. Use new

pipet tips for every volume transfer

n

Pay close attention to vortexing, shaking, and incubation instructions.

Deviation from protocol may result in low assay signal and assay variability

n

Assay incubations are carried out in the dark on a shaker at 850 ± 50 rpm.

Cover the plate with a plate seal and protect from light with aluminum foil

Table 6. Summary of wash options and protocols. After each assay step, select the

appropriate Bio-Plex Pro wash station program or perform the appropriate manual wash

step as summarized below.

Considerations When Using a Vacuum Manifold

n

After each incubation, place the filter plate on a calibrated vacuum

apparatus and remove the liquid by vacuum filtration

n

To wash, add 100 μl wash buffer to each well and remove the liquid as

before. Ensure that all wells are exposed to the vacuum

n

Thoroughly blot the bottom of the filter plate with a clean paper towel

between each vacuum step to prevent cross contamination

n

Place the assay plate on the plastic plate holder/tray as needed

n

Before each incubation, gently cover the plate with a new plate seal.

Avoid pressing down on the wells to prevent leaking from the bottom

Bio-Plex Pro or

Bio-Plex Pro II

Handheld Magnet or

Pro II Wash Station

Wash Station

Vacuum Manifold

Assay Step

Magnetic Program

Vacuum Program

Manual Wash Steps

Sample incubation

MAG x3

VAC x3

3 x 100 μl

SA-PE incubation

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