Mapping 250K/500K SNP assay

References
30 GeneChip ® Mapping 500K Assay Manual
4. Remove supernatant and wash pellet with 0.5 mL of 80% ethanol.
5. Centrifuge at 12,000 x g at room temperature for 5 minutes.
6. Remove the 80% ethanol and repeat the 80% ethanol wash one
more time.
7. Re-suspend the pellet in reduced EDTA TE buffer (10 mM Tris,
pH 8.0, 0.1 mM EDTA, pH 8.0).
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