The Micro Sample DNA Extraction Kit applies the unique binding buffer/ Proteinase K to rapidly lyse cells and inactivate cellualar nuclease, then DNA selectively absorbs on silicified membrane in high salt solution. Take a serial of elution-centrifugation steps to remove cellular metabolite and proteins etc. Finally use low salt elution washing away purified genome DNA from silicified membrane. Carrier has been used in this kit for precipitate micro DNA. This Kit can be used to isolate DNA from small scale blood and tissue, plasma, serum, bloodstain, hair follicle, and other small scale samples.