-No need to use organic solvent extraction and precipitation, higher extraction purity;

-Efficient combination of DNA and RNA, column load up to 20ug;

-High specificity, can withstand high-speed centrifugation and multiple solution treatments for a long time;

-A variety of specifications to choose from, 4 layers: mostly used for gel recovery PCR product purification; 6 layers/8 layers: mostly used for plasmid or genomic DNA extraction.