5-mL Tubes inside the magnetic stand for five min, then take away the buffer by using a pipette and clean the beads 2× with 500 μL of refreshing 80% ethanol. Immediately after the next wash, clear away all ethanol and make sure that no ethanol is left from the samples. https://rna-purification-beads04703.affiliatblogger.com/81851537/not-known-facts-about-isolation-of-small-dna-fragment