Magnetic bead-based purification 1. High-quality nucleic acid can be obtained range from 10 min to 40min (up to different protocol). 2. High throughput: Can be integrated with magnetic rod method automatic instrument or pipetting method automatic instrument to carry out high throughput extraction experiment. 3.Safe and nontoxic: No toxic organic reagents such as phenol/chloroform are needed. 4.Complete removal of contaminants and PCR inhibitors for downstream experiments.