Chemical compounds used in industry and science, in particular chemical compounds for conducting gene amplification reactions, also called polymerase chain reactions, in particular nucleic acids, oligonucleotides and polymerases; reagent kits primarily consisting of chemical compounds for conducting polymerase chain reaction; preparations for purifying foodstuffs or components thereof, in particular silica gels; reagent kits containing the aforesaid purifying preparations; [ monoclonal and po...