Izixhobo zokuqokelela kunye ne-reagent yokuqokelela, ukuthutha, kunye nokugcinwa kweesampuli zamathe.I-DNA / i-RNA Shield yenza ii-agents ezosulelayo zingasebenzi ngaphakathi kwe-saliva kwaye izinzile i-DNA kunye ne-RNA kwindawo yokuqokelela amathe.