Chromatographic Platform for Characterization of mRNA Samples

mRNA has been at the forefront of both scientific and general public interests from the start of the COVID-19 pandemic. However, there are still limited options available for rapid characterization of mRNA containing samples. For precise characterization of an mRNA sample, first the presence and concentration of mRNA molecules in the sample needs to be identified. In the second step, any contaminants in the sample coming from the IVT reaction need to be identified and quantified. All major components of the IVT reaction; nucleotides, capping reagent, enzymes and DNA template may be present in the mRNA sample. In addition, impurities such as shorter, incomplete RNA fragments, and in particular, dsRNA may also be present. Contaminants may also come from the mRNA in vitro instability, caused by spontaneous hydrolyzation of the mRNA backbone. These issues can be mitigated using appropriate analytical tools throughout the mRNA production and purification steps.

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