5.
Add 8 μL of 5 M potassium acetate to each well,
mix well and incubate at -20°C for 5-10 min.
6.
Centrifuge at 4°C for 15 min at 4000 rpm.
7.
Transfer supernatants to a new microwell plate containing 25 μL of isopropanol per well and
incubate at room temperature for 5 min.
8.
Centrifuge for 2 min at 4000 rpm, remove the supe
rnatants by aspiration, wash the nucleic acid
pellets with 50 μL ethanol 70% (v/v). Remove microplate lids and air dry the pellets.
9.
Dissolve the pellets in 50 μL of diluted (1:10)
TE buffer (10 mM Tris-HCl, 1mM EDT