Nucleic acid purification has been widely used in molecular biology laboratories. How to obtain high quality and high purity DNA or RNA samples is crucial to the smooth performance of downstream experiments. Therefore, the identification of purified nucleic acids is also an essential step.

The morphological and structural characteristics of the tissue of FFPE samples are observed experimentally or analyzed by immunohistochemistry with antibodies. However, with the development of technology, more and more people tend to choose to apply the latest techniques at the molecular level for in-depth data mining.

FFPE (Formalin-fixed paraffin-embedding) samples are common biomaterials in the medical field. These samples have been widely used in high-throughput sequencing, in situ hybridization, immunohistochemistry and other research fields.