title: Mass spectrometric monitoring of solid phase phosphate triester synthesis of DNA fragments.
abstract: A new and convenient pyrolysis mass spectrometric approach for monitoring solid phase phosphate triester synthesis of oligodeoxyribonucleotides in 5'-3' direction has been developed. The base-typical fragment ions produced by pyrolysis at 280 degrees C of the polymer-bound oligonucleotide triesters in the mass spectrometer permit the analytical monitoring of DNA chain growth, using simple mathematical operations. The base composition can be determined directly from the polymer. In addition, minor nucleosides can easily be detected.
mesh_terms: D001483:Base Sequence; D004247:DNA / Q000138:chemical synthesis*; D007202:Indicators and Reagents; D013058:Mass Spectrometry; D009838:Oligodeoxyribonucleotides / Q000138:chemical synthesis*; D009841:Oligonucleotides / Q000138:chemical synthesis*; D011108:Polymers
chemical_list: D007202:Indicators and Reagents; D009838:Oligodeoxyribonucleotides; D009841:Oligonucleotides; D011108:Polymers; D004247:DNA