Cov khoom siv no siv cov lus sib dhos thiab cov mis sib xyaw tsim los ntawm Foregene, uas tuaj yeem ua kom zoo-siab thiab muaj txiaj ntsig zoo tag nrho RNA los ntawm cov hlwb tsim hauv 96, 24, 12, thiab 6-daim hlau zoo. Cov khoom siv muab cov DNA kom zoo-Tu Ntu, uas tuaj yeem yooj yim cais cov supernatant thiab lysate ntawm tes, khi thiab tshem cov DNA tseeb. Lub sijhawm ua haujlwm yog yooj yim thiab txuag sijhawm; RNA nkaus xwb tuaj yeem cuam tshuam RNA nrog ib tus qauv tshwj xeeb. Coob tus qauv tuaj yeem ua tib lub sijhawm.
Cov kab ke tag nrho yog RNase-Dawb, kom lub RNA purified tsis muaj kev puas tsuaj; Tsis RW1, Tsis RW2 lub tshuab ntxhua khaub ncaws guaratee qhov tau txais RNA tsis muaj protein, DNA, ion, thiab cov pa phem.