5-mL tubes while in the magnetic stand for five min, then get rid of the buffer with a pipette and clean the beads two× with 500 μL of fresh 80% ethanol. After the next clean, take out all ethanol and make sure that no ethanol is left during the samples. https://magbeads48157.ziblogs.com/29726109/5-tips-about-dna-rna-extraction-you-can-use-today