The kit is designed for magnetic bead based purification of nucleic acids (RNA / DNA) from serum and other liquid samples. The kit can be used as an accessory in combination with a downstream in vitro diagnostic procedure and is intended to be used by professional users in a laboratory environment. It can be performed using automated platforms such as LINEAR NEOS-32 XT Nucleic Acid Extraction System or Biocomma M32/M48 Extraction Systems or equivalent.