RiboPure™ RNA Purification Kit, 50 Preps - FAQs

Q: What is the column cut-off size for the RiboPure RNA Purification Kits?

The column cut-off size is 200 nt. Using a RiboPure kit is not appropriate for miRNA recovery. For miRNA isolation, we would suggest using a mirVana kit, the TRIzol Plus RNA Purification Kit, or the PureLink RNA Micro Kit.

Q: What are the differences in technology between the PureLink RNA Mini Kit and RiboPure RNA Purification Kits?

The PureLink RNA Mini Kit provides rapid column-based purification of total RNA, without organic lysis (phenol/chloroform). You can obtain up to 1,000 µg of purified RNA from a single extraction. The RiboPure RNA Purification Kits combine a phenol/guanidine thiocyanate solution with a glass-fiber filter purification method.

Q: What is the composition of the elution buffer included in the RiboPure RNA Purification Kit (Cat. No. AM1924)?

The elution buffer composition is proprietary.

View additional product information for RiboPure™ RNA Purification Kit - FAQs (AM1924)

4 product FAQs found

I'm getting poor quality/poor purity of RNA after isolation with the RiboPure RNA Purification kit. What could be the cause of this?

Poor quality/poor purity RNA is typically due to the following:

- Partially degraded RNA: Use fresh tissue or cells, or use RNAlater Stabilization Solution if tissue cannot be frozen immediately.
- DNA contamination: If the sample contains organic solvents, strong buffers, or an alkaline solution, we recommend performing phase separation at 8 degrees C.
- A low A260/A280 ratio (<1.6): This indicates that an insufficient amount of the TRI Reagent was used. Incubation of the homogenate at room temperature for 5 minutes can help nucleoproteins dissociate from RNA. Phenol contamination could also cause a low absorbance ratio.

What is the column cut-off size for the RiboPure RNA Purification Kits?

The column cut-off size is 200 nt. Using a RiboPure kit is not appropriate for miRNA recovery. For miRNA isolation, we would suggest using a mirVana kit, the TRIzol Plus RNA Purification Kit, or the PureLink RNA Micro Kit.

What are the differences in technology between the PureLink RNA Mini Kit and RiboPure RNA Purification Kits?

The PureLink RNA Mini Kit provides rapid column-based purification of total RNA, without organic lysis (phenol/chloroform). You can obtain up to 1,000 µg of purified RNA from a single extraction. The RiboPure RNA Purification Kits combine a phenol/guanidine thiocyanate solution with a glass-fiber filter purification method.

What is the composition of the elution buffer included in the RiboPure RNA Purification Kit (Cat. No. AM1924)?

The elution buffer composition is proprietary.