Thermo Scientific 25 mM MgCl2 is an aqueous solution of 0.22 μm membrane-filtered magnesium chloride, used for optimization of magnesium ion concentration in PCR.
Perform DNA extractions with this phenol:chloroform:isoamyl alcohol mixture (25:24:1), accompanied by a buffer to equilibrate the solution at either pH 6.7 or pH 8.0.
Invitrogen molecular biology grade, 2M KCl solution is supplied in one bottle containing 100 mL. The solution is certified RNase-free, economical, and ready-to-use.
In RNA extraction procedures, Acid Phenol:Chloroform:IAA aids in the removal of DNA (it partitions into the organic phase), helps to stabilize the interface, and prevents foaming when mixing.