Atmospheric pressure ionization and gas phase ion mobility studies of isomeric dihalogenated benzenes using different ionization techniques

2004 ◽  
Vol 232 (2) ◽  
pp. 117-126 ◽  
Author(s):  
H Borsdorf ◽  
E.G Nazarov ◽  
G.A Eiceman
Keyword(s):  
Gas Phase ◽  
Ion Mobility ◽  
Atmospheric Pressure ◽  
Atmospheric Pressure Ionization ◽  
Mobility Studies ◽  
Gas Phase Ion

scholarly journals Native Ion Mobility Mass Spectrometry: When Gas-Phase Ion Structures Depend on the Electrospray Charging Process

2019 ◽  
Vol 30 (6) ◽  
pp. 1069-1081 ◽  
Author(s):  
Nina Khristenko ◽  
Jussara Amato ◽  
Sandrine Livet ◽  
Bruno Pagano ◽  
Antonio Randazzo ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Phase ◽  
Ion Mobility ◽  
Ion Mobility Mass Spectrometry ◽  
Gas Phase Ion

Subpicogram detection system for gas phase analysis based upon atmospheric pressure ionization (API) mass spectrometry

1974 ◽  
Vol 46 (6) ◽  
pp. 706-710 ◽  
Author(s):  
D. I. Carroll ◽  
I. Dzidic ◽  
R. N. Stillwell ◽  
M. G. Horning ◽  
E. C. Horning
Keyword(s):  
Mass Spectrometry ◽  
Gas Phase ◽  
Phase Analysis ◽  
Atmospheric Pressure ◽  
Detection System ◽  
Atmospheric Pressure Ionization

Ab initiocalculation of the gas phase ion mobility of CO+ions in He

1999 ◽  
Vol 32 (20) ◽  
pp. 4947-4955 ◽  
Author(s):  
R G A R Maclagan ◽  
L A Viehland ◽  
A S Dickinson
Keyword(s):  
Gas Phase ◽  
Ion Mobility ◽  
Gas Phase Ion

scholarly journals Towards a hand-held, fast, and sensitive gas chromatograph-ion mobility spectrometer for detecting volatile compounds

2020 ◽  
Author(s):  
André Ahrens ◽  
Stefan Zimmermann
Keyword(s):  
Gas Phase ◽  
Ion Mobility ◽  
Atmospheric Pressure ◽  
Response Times ◽  
Atmospheric Pressure Chemical Ionization ◽  
Real Life ◽  
High Sensitivity ◽  
Resolving Power ◽  
Gas Chromatograph ◽  
Ionization Processes

AbstractIon mobility spectrometers can detect gaseous compounds at atmospheric pressure in the range of parts per trillion within a second. Due to their fast response times, high sensitivity, and limited instrumental effort, they are used in a variety of applications, especially as mobile or hand-held devices. However, most real-life samples are gas mixtures, which can pose a challenge for IMS with atmospheric pressure chemical ionization mainly due to competing gas-phase ionization processes. Therefore, we present a miniaturized drift tube IMS coupled to a compact gas chromatograph for pre-separation, built of seven bundled standard GC columns (Rtx-Volatiles, Restek GmbH) with 250 μm ID and 1.07 m in length. Such pre-separation significantly reduces chemical cross sensitivities caused by competing gas-phase ionization processes and adds orthogonality. Our miniaturized GC-IMS system is characterized with alcohols, halocarbons, and ketones as model substances, reaching detection limits down to 70 pptv with IMS averaging times of just 125 ms. It separates test mixtures of ketones and halocarbons within 180 s and 50 s, respectively. The IMS has a short drift length of 40.6 mm and reaches a high resolving power of RP = 68.

scholarly journals Direct observation of C60− nano-ion gas phase ozonation via ion mobility-mass spectrometry

2019 ◽  
Vol 21 (20) ◽  
pp. 10470-10476 ◽  
Author(s):  
Chenxi Li ◽  
Christopher J. Hogan Jr
Keyword(s):  
Mass Spectrometry ◽  
Gas Phase ◽  
Ion Mobility ◽  
Atmospheric Pressure ◽  
Reaction Rates ◽  
Ion Mobility Mass Spectrometry ◽  
Mobility Analysis ◽  
Differential Mobility ◽  
Differential Mobility Analysis

Atmospheric pressure differential mobility analysis-mass spectrometry facilitates determination of nano-ion-neutral reaction rates approaching the collision controlled limit.

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