Five-mL tubes from the magnetic stand for five min, then take out the buffer with a pipette and wash the beads 2× with five hundred μL of clean eighty% ethanol. Immediately after the 2nd clean, clear away all ethanol and Be certain that no ethanol is left within the samples. https://magnetic-beads-rna-isolat50369.wikikali.com/825186/the_5_second_trick_for_magnetic_beads_dna_extraction