Dissociation of Molecular Ions Formed by Charge Exchange in an In‐Line Tandem Mass Spectrometer

1972 ◽  
Vol 57 (4) ◽  
pp. 1515-1534 ◽  
Author(s):  
C. Lifshitz ◽  
T. O. Tiernan
Keyword(s):  
Charge Exchange ◽  
Mass Spectrometer ◽  
Molecular Ions ◽  
Tandem Mass ◽  
Tandem Mass Spectrometer

scholarly journals MS/MS studies on the selective on-line detection of sesquiterpenes using a Flowing Afterglow–Tandem Mass Spectrometer (FA-TMS)

2011 ◽  
Vol 4 (4) ◽  
pp. 669-681 ◽  
Author(s):  
J. Rimetz-Planchon ◽  
F. Dhooghe ◽  
N. Schoon ◽  
F. Vanhaecke ◽  
C. Amelynck
Keyword(s):  
Mass Spectrometer ◽  
Chemical Ionization ◽  
Transfer Reaction ◽  
Proton Transfer Reaction ◽  
Molecular Ions ◽  
Line Detection ◽  
Tandem Mass ◽  
Flowing Afterglow ◽  
Tandem Mass Spectrometer ◽  
On Line

Abstract. A Flowing Afterglow-Tandem Mass Spectrometer (FA-TMS) was used to investigate the feasibility of selective on-line detection of a series of seven sesquiterpenes (SQTs). These SQTs were chemically ionized by either H3O+ or NO+ reagent ions in the FA, resulting among others in protonated SQT and SQT molecular ions, respectively. These and other Chemical Ionization (CI) product ions were subsequently subjected to dissociation by collisions with Ar atoms in the collision cell of the tandem mass spectrometer. The fragmentation spectra show similarities with mass spectra obtained for these compounds with other instruments such as a Proton Transfer Reaction-Linear Ion Trap (PTR-LIT), a Proton Transfer Reaction-Mass Spectrometer (PTR-MS), a Triple Quadrupole-Mass Spectrometer (QqQ-MS) and a Selected Ion Flow Tube-Mass Spectrometer (SIFT-MS). Fragmentation of protonated SQT is characterized by fragment ions at the same masses but with different intensities for the individual SQT. Distinction of SQTs is based on well-chosen intensity ratios and collision energies. The fragmentation patterns of SQT molecular ions show specific fragment ion tracers at m/z 119, m/z162, m/z 137 and m/z 131 for α-cedrene, δ-neoclovene, isolongifolene and α-humulene, respectively. Consequently, chemical ionization of SQT by NO+, followed by MS/MS of SQT+ seems to open a way for selective quantification of SQTs in mixtures.

A new tandem mass spectrometer for photofragment spectroscopy of cold, gas-phase molecular ions

2010 ◽  
Vol 81 (7) ◽  
pp. 073107 ◽  
Author(s):  
Annette Svendsen ◽  
Ulrich J. Lorenz ◽  
Oleg V. Boyarkin ◽  
Thomas R. Rizzo
Keyword(s):  
Gas Phase ◽  
Mass Spectrometer ◽  
Molecular Ions ◽  
Tandem Mass ◽  
Tandem Mass Spectrometer ◽  
Cold Gas

scholarly journals MS/MS studies on the selective on-line detection of sesquiterpenes using a flowing afterglow-tandem mass spectrometer

2010 ◽  
Vol 3 (5) ◽  
pp. 4285-4311 ◽  
Author(s):  
J. Rimetz-Planchon ◽  
F. Dhooghe ◽  
N. Schoon ◽  
F. Vanhaecke ◽  
C. Amelynck
Keyword(s):  
Mass Spectrometer ◽  
Chemical Ionization ◽  
Transfer Reaction ◽  
Proton Transfer Reaction ◽  
Molecular Ions ◽  
Line Detection ◽  
Tandem Mass ◽  
Flowing Afterglow ◽  
Tandem Mass Spectrometer ◽  
On Line

Abstract. A Flowing Afterglow-Tandem Mass Spectrometer (FA-TMS) was used to investigate the feasibility of selective on-line detection of a series of seven sesquiterpenes (SQTs). These SQTs were chemically ionized by either H3O+ or NO+ reagent ions in the FA, resulting among others in protonated SQT and SQT molecular ions, respectively. These and other Chemical Ionization (CI) product ions were subsequently subjected to dissociation by collisions with Ar atoms in the collision cell of the tandem mass spectrometer. The fragmentation spectra show similarities with mass spectra obtained for these compounds with other instruments such as a Proton Transfer Reaction-Linear Ion Trap (PTR-LIT), a Proton Transfer Reaction-Mass Spectrometer (PTR-MS), a Triple Quadrupole-Mass Spectrometer (QqQ-MS) and a Selected Ion Flow Tube-Mass Spectrometer (SIFT-MS). Fragmentation of protonated SQT is characterized by fragment ions at the same masses but with different intensities for the individual SQT. Distinction of SQTs is based on well-chosen intensity ratios and collision energies. The fragmentation patterns of SQT molecular ions show specific fragment ion tracers at m/z 119, m/z 162, m/z 137 and m/z 131 for α-cedrene, δ-neoclovene, isolongifolene and α-humulene, respectively. Consequently, chemical ionization of SQT by NO+, followed by MS/MS of SQT+ seems to open a way for selective quantification of SQTs in mixtures.

scholarly journals Methodology and validation of a new tandem mass spectrometer method for the quantification of inorganic and organic 18O-phosphate species

PLoS ONE ◽  
2020 ◽  
Vol 15 (2) ◽  
pp. e0229172
Author(s):  
Aimée Schryer ◽  
Kris Bradshaw ◽  
Steven D. Siciliano
Keyword(s):  
Mass Spectrometer ◽  
Tandem Mass ◽  
Tandem Mass Spectrometer ◽  
Phosphate Species ◽  
Inorganic And Organic

Fragmentation Characteristics of Neutral N-Linked Glycans Using a MALDI-TOF/TOF Tandem Mass Spectrometer

2004 ◽  
Vol 76 (8) ◽  
pp. 2343-2354 ◽  
Author(s):  
Elaine Stephens ◽  
Sarah L. Maslen ◽  
Luke G. Green ◽  
Dudley H. Williams
Keyword(s):  
Mass Spectrometer ◽  
Tandem Mass ◽  
Tandem Mass Spectrometer ◽  
Maldi Tof
Sign in / Sign up

Export Citation Format

Share Document