Ambion™ RNA Control 250 provides a precise, accurate and reproducible RNA concentration reference for use with NanoDrop™ spectroscopy Used in conjunction with a photometer. It is supplied in two tubes, each containing 20 µL.

• Stable, high-purity transcripts at precisely known concentrations
• Used to verify the accuracy of NanoDrop™ spectrophotometer measurements
• Comes with THE RNA storage solution for blank measurements< br>• Sufficient for 20 measurements

RNA Control 250 consists of a single ultrapure 2000 nt RNA transcript of precisely defined sequence, molecular weight and concentration. It is packaged in a special non-stick tube and includes Ambion™ THE RNA Storage Solution. RNA Control 250 will maintain RNA integrity at +/- 5% and >85% of the stated concentration over 5 freeze-thaw cycles (10 replicate measurements).