Mix 40ul of PCR product + 80ul 100% EtOH + 4ul 3M NaOAc in 1.5 ml snap top tube. [1Vol + 2Vol 100% EtOH + 0.1Vol 3M NaOAc]Ice for 20 MinutesSpin 5 minutes, pour offWash in ~140ul EtOH, spin 5 minutesDryResuspend in 25ul H2O