Studies of ion molecule reactions using a multiple quadrupole mass spectrometer. Part 3. The reactions of alkenyl radical cations C n H2n + with alkenes

1986 ◽  
pp. 1197 ◽  
Author(s):  
Alan L. Mitchell ◽  
John M. Tedder
Keyword(s):  
Mass Spectrometer ◽  
Radical Cations ◽  
Quadrupole Mass Spectrometer ◽  
Quadrupole Mass ◽  
Ion Molecule Reactions ◽  
Alkenyl Radical

scholarly journals Chemical ionisation quadrupole mass spectrometer with an electrical discharge ion source for atmospheric trace gas measurement

2018 ◽  
Author(s):  
Philipp G. Eger ◽  
Frank Helleis ◽  
Gerhard Schuster ◽  
Gavin J. Phillips ◽  
Jos Lelieveld ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Mass Spectrometer ◽  
Ion Source ◽  
Quadrupole Mass Spectrometer ◽  
Rf Discharge ◽  
Data Sets ◽  
Quadrupole Mass ◽  
Ion Chemistry ◽  
Ion Molecule Reactions ◽  
Chemical Ionisation

Abstract. We present a Chemical Ionisation Quadrupole Mass Spectrometer (CI-QMS) with radio-frequency (RF) discharge ion source through N2/CH3I as source of primary ions. In addition to the expected detection of PAN, peracetic acid and ClNO2 through well-established ion-molecule-reactions with I- and its water cluster, the instrument is also sensitive to SO2, HCl and acetic acid (CH3C(O)OH) through additional ion chemistry unique for our ion source. We present ionisation schemes for detection of SO2, HCl and acetic acid along with illustrative data sets from three different field campaigns underlining the potential of the CI-QMS with an RF discharge ion source as an alternative to 210Po. The additional sensitivity to SO2 and HCl makes the CI-QMS suitable for investigating the role of sulphur and chlorine chemistry in the polluted marine and coastal boundary layer.

scholarly journals Chemical ionization quadrupole mass spectrometer with an electrical discharge ion source for atmospheric trace gas measurement

2019 ◽  
Vol 12 (3) ◽  
pp. 1935-1954 ◽  
Author(s):  
Philipp G. Eger ◽  
Frank Helleis ◽  
Gerhard Schuster ◽  
Gavin J. Phillips ◽  
Jos Lelieveld ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Mass Spectrometer ◽  
Chemical Ionization ◽  
Ion Source ◽  
Quadrupole Mass Spectrometer ◽  
Rf Discharge ◽  
Quadrupole Mass ◽  
Ion Chemistry ◽  
Ion Molecule Reactions ◽  
Coastal Boundary Layer

Abstract. We present a chemical ionization quadrupole mass spectrometer (CI-QMS) with a radio-frequency (RF) discharge ion source through N2∕CH3I as a source of primary ions. In addition to the expected detection of PAN, peracetic acid (PAA) and ClNO2 through well-established ion–molecule reactions with I− and its water cluster, the instrument is also sensitive to SO2, HCl and acetic acid (CH3C(O)OH) through additional ion chemistry unique to our ion source. We present ionization schemes for detection of SO2, HCl and acetic acid along with illustrative datasets from three different field campaigns underlining the potential of the CI-QMS with an RF discharge ion source as an alternative to 210Po. The additional sensitivity to SO2 and HCl makes the CI-QMS suitable for investigating the role of sulfur and chlorine chemistry in the polluted marine and coastal boundary layer.

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