This reagent kit is based on paramagnetic particle method, used for nucleic acid(DNA/RNA) isolation in the biological samples, and also used for genome DNAisolation in whole blood.Paramagnetic particle method has features of automation, high output and goodrepeatability in nucleic acid isolation. It can remove the most protein, inorganic saltions and many organic impurities, the isolated nucleic acid has high purity, can beused for test including PCR, RT-PCR, real-time fluorescence PCR, etc