5-mL tubes from the magnetic stand for 5 min, then eliminate the buffer which has a pipette and wash the beads two× with 500 μL of clean 80% ethanol. Immediately after the second wash, clear away all ethanol and Guantee that no ethanol is still left while in the samples. https://rnabeads15825.life-wiki.com/941738/5_tips_about_dna_rna_extraction_you_can_use_today