RNA Purification

RNA extraction and handling are technically more challenging than DNA manipulation due to the presence of a reactive 2’-OH on RNA ribose residues and to the ubiquitous and stable nature of RNases. Successful RNA extraction requires good laboratory practice including special washing and cleaning procedures and RNase-free technique. Products are available for in situ and in vitro procedures and for removing traces of DNA from isolation yields. Sigma’s Spectrum Plant Total RNA kits for isolating and purifying high-quality total RNA needed for applications such as Northern blots and Reverse Transcriptase-Polymerase Chain Reaction (RT-PCR). The kits provide convenient and rapid processing without using hazardous organic solvents, while separating genomic DNA and removing secondary metabolites such as polyphenolic compounds and polysaccharides from a wide variety of plant species and tissues. Yields depend on the tissue type and developmental stage of the sample. The kits can also recover small RNA molecules such as microRNA, siRNA, tRNA, and 5S rRNA.

Product #


Add to Cart

AMPD1 DNase I Amplification Grade
E4913 Plant/Fungi RNA Purification Kit sufficient for 50 purifications Green Alternative
E4788 Plant RNA/DNA Purification Kit sufficient for 50 purifications
R7397 ProtectRNA RNase Inhibitor 500× Concentrate RNase inhibitor for in situ hybridization assays
R0901 RNAlater® Stabilize and protect RNA with immediate RNase inactivation
R2020 RNaseZAP Cleaning agent for removing RNase
R4533 RNAzol® RT For processing total and small RNA from human, animal, plant, bacterial,and viral samples
STRN10 Spectrum Plant Total RNA Kit sufficient for 10 purifications Green Alternative
STRN50 Spectrum Plant Total RNA Kit sufficient for 50 purifications Green Alternative
STRN250 Spectrum Plant Total RNA Kit sufficient for 250 purifications Green Alternative
T9424 TRI Reagent® For processing tissues, cells cultured in monolayer or cell pellets