Structural determination of the novel fragmentation routes of morphine opiate receptor antagonists using electrospray ionization quadrupole time-of-flight tandem mass spectrometry

Nicolas Joly 1 Anas El Aneed Patrick Martin 1 Roméo Cecchelli 1 Joseph Banoub
1 LBHE - Laboratoire de Physiopathologie de la Barrière Hémato-Encéphalique
Abstract : Electrospray ionization quadrupole time-of-flight (ESI-QqToF) mass spectra of naltrindole hydrochloride 1, naltriben mesylate 2, and naltrexone hydrochloride 3, a common series of morphine opiate receptor antagonists, were recorded using different declustering potentials. Low-energy collision-induced dissociation (CID) MS/MS experiments established the fragmentation routes of these compounds. In addition, re-confirmation of the various established fragmentation routes was effected by conducting a series of ESI-CID-QqTof-MS/MS experiments using non-conventional quasi MSn (up to MS8) product ion scans, which were initiated by CID in the atmospheric pressure/vacuum interface using a higher declustering potential. Precursor ion scan analyses were also performed with a conventional quadrupole-hexapole-quadrupole tandem mass spectrometer and allowed the confirmation of the genesis of some diagnostic ions.
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Submitted on : Monday, December 6, 2010 - 9:24:25 AM
Last modification on : Monday, December 6, 2010 - 9:24:25 AM

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Nicolas Joly, Anas El Aneed, Patrick Martin, Roméo Cecchelli, Joseph Banoub. Structural determination of the novel fragmentation routes of morphine opiate receptor antagonists using electrospray ionization quadrupole time-of-flight tandem mass spectrometry. Rapid Communications in Mass Spectrometry, Wiley, 2005, 19, p. 3119-3130. ⟨hal-00543171⟩

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