Analysis of Phosphorothioate Oligonucleotide by FT-ICR-MS

Journal of Instrumental Analysis(2008)

Cited 23|Views30
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Abstract
The phosphorothioate oligonucleotides are used more and more for cancer treatment.Fast analysis of phosphorothioate oligonucleotide is important for quality control of this drug.In this paper,FT-ICR-MS was used to analyze a phosphorothioate oligonucleotide with 6 321 u.Experimental results showed that accurate relative molecular mass of phosphorothioate oligonucleotide determined by FT-ICR-MS can be used for confirmation of its composition.
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Key words
FT-ICR-MS,analysis,phosphorothioate oligonucleotide
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