The TIANpure Midi Plasmid Kit adopts a specific designed Filtration CS in addition to the spin column-based extraction kit, which can remove trace proteins and other impurities during the plasmid DNA extraction. The purified high-purity plasmid DNA yield can be up to 70 μg, and can be applied in high-precision molecular biology experiments such as the transfection of large amount of plasmids into animal culture cells. - High-purity: The purified plasmid DNA can be directly used in high-precision experiments such as transfection. - Large sample amount: 5-15 ml of bacteria culture medium can be processed in one practice, so that the efficiency of the experiment is improved. - Fast: Simple procedure with minimal steps to minimize the operation time. - High efficiency: More than 85% of plasmid DNA can be purified from E.coli.