This kit is mainly suitable for quickly and easily extracting genomic DNA from 0.1-1 ml fresh and frozen anticoagulated whole blood samples. The kit uses silica gel membrane purification technology, and no toxic reagents such as phenol and chloroform are required during the extraction process. There is no need for time-consuming alcohol precipitation, and the maximum removal of RNA, protein, lipids and other inhibitory impurities. The extracted genomic DNA has high purity and stable quality, and can be used for downstream experiments such as enzyme digestion, PCR, Southern blotting, etc.   High yield, excellent purity, good integrity; wide range of sample application; wide range of volume compatibility Except for Proteinase K, the other components of the kit should be stored at 15-25°C; Proteinase K can be stored at 15-25℃ for three months, long-term storage needs to be placed at 2-8℃.