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Mapping 250K/500K SNP assay

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chapter 4 | 96-Well Plate Protocol 119<br />

you must use method 2 or method 3 (see About this Stage on<br />

page 114).<br />

• About DMSO:<br />

- When adding to the Hybridization Master Mix, pipette DMSO<br />

into the middle of the tube. Do not touch the sides of the tube as<br />

the DMSO can leach particles out of the plastic which, in turn,<br />

may cause high background.<br />

- DMSO is light sensitive and must be stored in a dark glass bottle.<br />

Do not store in a plastic container.<br />

• Be sure to allow the arrays to equilibrate to room temperature;<br />

otherwise, the rubber septa may crack and the array may leak.<br />

• An accurate hybridization temperature is critical for this <strong>assay</strong>.<br />

Therefore, we recommend that your hybridization ovens be serviced<br />

at least once per year to ensure that they are operating within<br />

manufacture specifications.<br />

• Gloves, safety glasses, and lab coats must be worn when preparing<br />

the Hybridization Master Mix.<br />

• Consult the appropriate MSDS for reagent storage and handling<br />

requirements.

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