✦ LIBER ✦

Ion-molecule reactions of dimethyl ether cations with polycyclic aromatic hydrocarbons in a quadrupole ion trap mass spectrometer

✍ Scribed by Mosi, Andrew A.; Skelton, Randall H.; Eigendorf, Guenter K.

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 72 KB
Volume: 34
Category: Article
ISSN: 1076-5174
DOI: 10.1002/(sici)1096-9888(199912)34:12<1274::aid-jms902>3.0.co;2-e

No coin nor oath required. For personal study only.

✦ Synopsis

The reaction chemistry between dimethyl ether (DME) cations and polycyclic aromatic hydrocarbons (PAHs) was elucidated by isolating three different types of DME ions using a quadrupole ion trap and reacting them individually with neutral PAH molecules eluting from a gas chromatographic column. The results obtained show that the CH 2 OCH 3 Y ion (m/z 45) reacts via adduct formation followed by elimination of CH 3 OH, the (CH 3 ) 2 OH Y (m/z 47) ion serves as proton donor and the (CH 3 ) 3 O Y ion (m/z 61) does not yield any reaction products.

📜 SIMILAR VOLUMES

Ion-Molecule Reactions of Halocarbon Cat

Ion-Molecule Reactions of Halocarbon Cations with Polycyclic Aromatic Hydrocarbons in a Quadrupole Ion TrapPart I—Differentiation of Structural Isomers

✍ Mosi, Andrew A.; Cullen, William R.; Eigendorf, Guenter K. 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 453 KB 👁 1 views

Ion-molecule reactions between polycyclic aromatic hydrocarbons (PAHs) and ions (R') generated from halogenated hydrocarbons (dichloromethane, chloroform, carbon tetrachloride, 1,1-dichloroethane, diÑuoromethane and 1,1-diÑuoroethane) in a quadrupole ion trap were used to di †erentiate a series of s

Gas phase hydrogen/deuterium exchange re

Gas phase hydrogen/deuterium exchange reactions of peptide ions in a quadrupole ion trap mass spectrometer

✍ Igor A. Kaltashov; Vladimir M. Doroshenko; Robert J. Cotter 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 93 KB 👁 1 views

Hydrogen/deuterium exchange reactions of protonated and sodium cationized peptide molecules have been studied in the gas phase with a MALDI / quadrupole ion trap mass spectrometer. Unit-mass selected precursor ions were allowed to react with deuterated ammonia introduced into the trap cell by a puls

Stereochemical differentiation of cyclic

Stereochemical differentiation of cyclic glycols by ion-molecule reactions in a quadrupole mass spectrometer using dimethyl ether acetonitrile and 2-S-pyrrolidinemethanol

✍ Valerie Mancel; Nicole Sellier 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 94 KB

In this study, ion-molecule reactions using chemical ionization in the positive ion mode using dimethyl ether, acetonitrile and 2-S-pyrrolidinemethanol as reagent gases have been used to distinguish between cis-and trans-1,2-cyclopentanediol and cis-and trans-1,2-cyclohexanediol. In the gas phase, t

Gas-phase Ion-Molecule Reactions of Trim

Gas-phase Ion-Molecule Reactions of Trimethyl Phosphite with the Phosphonium Ion OP(OCH3)2+ in a Quadrupole Ion Trap

✍ Morizur, J.-P.; Gevrey, S.; Luna, A.; Taphanel, M.-H. 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 334 KB 👁 1 views

The gas-phase ion-molecule reactions of the phosphonium ion formed by electron impact with OP(OCH 3 ) 2 ' neutral trimethyl phosphite were studied with the use of a quadrupole ion trap (QIT) mass spectrometer. Observed reactions include competing methoxy transfers between and the neutral species to