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Derivatization of aminoalkylphosphonic acids for characterization by gas chromatography mass spectrometry.

A general derivatization method has been developed for both primary and secondary aminoalkyl-phosphonic acids. Derivatization is effected by reaction with trifluoroacetic acid and trifluoroacetic acid anhydride followed by esterification using ethereal diazo-n-butane. This method can be used for microgram quantities and permits ready characterization by both gas chromatography and gas chromatography mass spectrometry. The structure of this derivative has been verified by mass spectrometry and proton magnetic resonance. Fragmentation patterns were confirmed by high resolution mass spectrometry, isotope labeling and the formation of derivative analogs.[1]

References

  1. Derivatization of aminoalkylphosphonic acids for characterization by gas chromatography mass spectrometry. Rueppel, M.L., Suba, L.A., Marvel, J.T. Biomed. Mass Spectrom. (1976) [Pubmed]
 
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