✦ LIBER ✦

Collision-induced dissociation mass spectra of cocaine, and its metabolites and pyrolysis products

✍ Scribed by Wang, PingPing; Bartlett, Michael G.

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 210 KB
Volume: 33
Category: Article
ISSN: 1076-5174
DOI: 10.1002/(sici)1096-9888(1998100)33:10<961::aid-jms705>3.0.co;2-9

No coin nor oath required. For personal study only.

✦ Synopsis

As the Ðrst step in the development of a liquid chromatographic/tandem mass spectrometric method for the quantitation of cocaine, its metabolites and its pyrolytic degradation products from biological matrices, the collisioninduced dissociation of the protonated and selected deuterium-labeled species was studied. The fragment ions generated from the CID mass spectra were assigned and fragmentation mechanisms were proposed.

📜 SIMILAR VOLUMES

Electrospray Collision-induced Dissociat

Electrospray Collision-induced Dissociation Mass Spectra of Positively Charged Oligonucleotides

✍ PingPing Wang; Michael G. Bartlett; LeRoy B. Martin 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 238 KB 👁 2 views

Positive ion collision-induced dissociation (CID) mass spectra of oligonucleotides provide qualitatively similar fragmentation patterns to CID mass spectra generated from negative ion precursors. The major sequence ion series w and a-base are still abundant enough to be useful for the determination

Comparative Electron Ionization, Chemica

Comparative Electron Ionization, Chemical Ionization, and Collision-induced Dissociation Mass Spectra of Iminopyridine Derivatives

✍ Steven M. Schildcrout; James A. Reeder 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 104 KB 👁 1 views

Positive-ion electron ionization (EI), methane chemical ionization (CI) and collision-induced dissociation (CID) mass spectra are reported for a series of pyridone-imines generated from 1-alkyl substituted aminopyridinium salts in a direct-probe inlet. The series comprises 1-methyl-2-imino-and 1-eth

Electrospray ionization mass spectra and

Electrospray ionization mass spectra and collision induced mass spectra of antitumour Catharanthus alkaloids

✍ Donata Favretto; Anna Piovan; Elsa M. Cappelletti 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 96 KB 👁 2 views

Electrospray ionization mass spectrometr

Electrospray ionization mass spectrometry with in-source collision-induced dissociation of monensin factors and related metabolites

✍ Douglas E. Kiehl; Randall K. Julian; Jr.; Allison S. Kennington 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 171 KB 👁 2 views

Electrospray and Collision-induced Disso

Electrospray and Collision-induced Dissociation Mass Analysis of Star-burst Type Tetranuclear Complexes

✍ Arakawa, Ryuichi; Matsubayashi, Gen-etsu; Ohashi, Noriko; Furuuchi, Satoshi; Mat 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 474 KB 👁 1 views

A number of star-burst type tetranuclear complexes denoted by [ Met(II)L,B] ,RuX, (Met = Ru, 0s) were examined by positive electrospray (ES) mass spectrometry, where L is bpy (2,2'-bipyridine) or btfmb (44'bis(trifluoromethyl)-2,2'-bipyridine), bridging ligand B is l,l'-dimethyl-2,2'-bis(2"-pyridy1)

Characterization of flavone and flavonol

Characterization of flavone and flavonol aglycones by collision-induced dissociation tandem mass spectrometry

✍ Y. L. Ma; Q. M. Li; H. Van den Heuvel; M. Claeys 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 177 KB 👁 2 views

A mass spectrometric method based on the combined use of fast atom bombardment collisionally-induced dissociation (CID) and tandem mass spectrometry has been used for the structural characterization of free and conjugated flavone and flavonol aglycones. Low-energy CID spectra of the [M + H] + (or Y