from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. distilled twice
bi- + distilled (Wiktionary)
Then 30 µl bidistilled water, 1 µl linear acrylamide (5 mg / ml, Ambion, Austin, TX) and 60 µl chloroform were added before continuing RNA extraction with a standard protocol, using n-propanol for RNA precipitation overnight.