Impact of Ambient Vapors Present in an Electrospray Ionization Source on Gas-Phase Ion Structures

2021 ◽  
Vol 32 (3) ◽  
pp. 725-735
Author(s):  
Zhaoyu Zheng ◽  
Athula B. Attygalle
Keyword(s):  
Electrospray Ionization ◽  
Gas Phase ◽  
Ionization Source ◽  
Gas Phase Ion

Unexpected cytosine–AuCl4− interaction under electrospray ionization mass spectrometry conditions—Formation of cytosine–Au(I) complexes

2019 ◽  
Vol 26 (3) ◽  
pp. 225-229
Author(s):  
Magdalena Frańska ◽  
Emilia Konował
Keyword(s):  
Electrospray Ionization ◽  
Gas Phase ◽  
Mass Spectra ◽  
Mass Spectrometric ◽  
Negative Ion ◽  
Ionization Mass ◽  
Ionization Source ◽  
Full Scan ◽  
Negative Ion Mode ◽  
Product Ion Spectra

The interaction of cytosine with AuCl4−, under electrospray ionization mass spectrometric conditions, is discussed. On the basis of respective full scan mass spectra and product ion spectra, obtained in positive and negative ion mode, it has been deduced that cytosine is very prone to form Au(I)-containing complexes. The complexes may be formed in the gas phase by decomposition of Au(III)-containing complexes and also in the electrospray ionization source as a result of the occurrence of redox process. It has also been found that the interaction of cytosine with Au+ is stronger than that with Cu+ or Ag+, although taking into account the electrostatic attraction, it is not expected.

Combined electrospray ionization source with a velocity map imaging spectrometer for studying large gas phase molecular ions

The Analyst ◽  
2012 ◽  
Vol 137 (15) ◽  
pp. 3496 ◽  
Author(s):  
E. Papalazarou ◽  
C. Cauchy ◽  
T. Barillot ◽  
B. Bellina ◽  
J. Maurelli ◽  
...  
Keyword(s):  
Electrospray Ionization ◽  
Gas Phase ◽  
Molecular Ions ◽  
Velocity Map Imaging ◽  
Ionization Source ◽  
Imaging Spectrometer

scholarly journals An intense electrospray ionization source for soft X-ray photoionization of gas phase protein ions

2015 ◽  
Vol 635 (11) ◽  
pp. 112083
Author(s):  
Dmitrii Egorov ◽  
Bari Sadia ◽  
Ronnie Hoekstra ◽  
Arkadiusz Lawicki ◽  
Konstantin Hirsch ◽  
...  
Keyword(s):  
Electrospray Ionization ◽  
Gas Phase ◽  
Ionization Source ◽  
X Ray ◽  
Protein Ions ◽  
Phase Protein

Gas phase reaction between chromones and solvent in an electrospray ionization source

2018 ◽  
Vol 54 (1) ◽  
pp. 66-72 ◽  
Author(s):  
Zhen Liu ◽  
Yunlong Shao ◽  
Guizhen Zhu ◽  
Xiayan Wang ◽  
Yunfeng Chai ◽  
...  
Keyword(s):  
Electrospray Ionization ◽  
Gas Phase ◽  
Phase Reaction ◽  
Ionization Source ◽  
Gas Phase Reaction

A Novel Gas Sensor for Chemicals On-Line Detection in Transportation

2015 ◽  
Vol 738-739 ◽  
pp. 46-49
Author(s):  
Dong Jie Zhao ◽  
Jun Liu ◽  
Fang Yan ◽  
Yan Xu
Keyword(s):  
Gas Phase ◽  
Gas Sensor ◽  
Ion Mobility ◽  
High Sensitivity ◽  
Line Detection ◽  
Asymmetric Waveform ◽  
Ionization Source ◽  
Product Gas ◽  
On Line ◽  
Gas Phase Ion

With concern for chemicals leak in transportation, there is an urgent need for a sensor which can quickly and accurately detect chemicals. In this study, a high-sensitivity gas sensor was demonstrated, which is based on high-field asymmetric waveform ion mobility spectrometry technology with corona discharge (CD) used as the ionization source to product gas-phase ion samples, which can get the response in one second. The effects of dispersion voltage and moisture were investigated.

Reactivity Trends in the Gas Phase Addition of Acetylene to N-protonated Aryl Radical Cations

2020 ◽  
Author(s):  
Oisin Shiels ◽  
P. D. Kelly ◽  
Cameron C. Bright ◽  
Berwyck L. J. Poad ◽  
Stephen Blanksby ◽  
...  
Keyword(s):  
Gas Phase ◽  
Ion Trap ◽  
Radical Cations ◽  
Rate Coefficients ◽  
Similar Process ◽  
Ion Molecule Reactions ◽  
Aromatic Radicals ◽  
Polycyclic Aromatic ◽  
Gas Phase Ion ◽  
Type Radical

<div> <div> <div> <p>A key step in gas-phase polycyclic aromatic hydrocarbon (PAH) formation involves the addition of acetylene (or other alkyne) to σ-type aromatic radicals, with successive additions yielding more complex PAHs. A similar process can happen for N- containing aromatics. In cold diffuse environments, such as the interstellar medium, rates of radical addition may be enhanced when the σ-type radical is charged. This paper investigates the gas-phase ion-molecule reactions of acetylene with nine aromatic distonic σ-type radical cations derived from pyridinium (Pyr), anilinium (Anl) and benzonitrilium (Bzn) ions. Three isomers are studied in each case (radical sites at the ortho, meta and para positions). Using a room temperature ion trap, second-order rate coefficients, product branching ratios and reaction efficiencies are reported. </p> </div> </div> </div>

Sign in / Sign up

Export Citation Format

Share Document