Q1: Can the RCC kit be used to purify DNA (cDNA)?
Yes. The kit efficiently recovers all types of nucleic acids.
Q2: Should carrier RNA be added to the sample prior to purification?
Carrier RNA can be added with no detrimental effects. The RCC is highly efficient without the need for carrier RNA, and no significant improvement in recovery has been observed with carrier RNA.
Q3: Will this kit remove fluorescent dyes, radiolabeled dNTP’s and/or Biotin?
Yes, the kit efficiently removes unincorporated fluorescent dyes, radiolabeled dNTP’s and Biotin.
Q4: Are samples containing high concentration of detergents, salts, formamide or sucrose compatible with the RCC buffer system?
Product Tolerance Reference: – ≤5% Triton X-100 – ≤5% Tween-20 – ≤5% Sarkosyl – ≤0.1% SDS – ≤90% formamide – Sucrose samples should be diluted/titrated down 10- to 100- fold.
Q5: Can other DNase I enzymes or sets (e.g. Qiagen DNase I) be used?
Yes, follow respective protocol for on-column DNase treatment. If the DNase does not have a protocol, proceed with in-tube DNase treatment post clean-up, then re-purify.
Q6: Is DNase I treatment necessary?
If the downstream application requires DNA-free RNA, we would recommend performing in-column or in-tube DNase I treatment.
Q7: Which protocol is recommended? In-tube or in-column DNase treatment?
Both treatments will remove DNA efficiently. For pre-extracted RNA, perform in-tube DNase treatment followed by RNA clean-up.
