Plasma source atmospheric pressure ionization detection of liquid injection using an ion trap storage/reflectron time-of-flight mass spectrometer

1993 ◽  
Vol 65 (14) ◽  
pp. 1916-1924 ◽  
Author(s):  
Benjamin M. Chien ◽  
Steven M. Michael ◽  
David M. Lubman
2008 ◽  
Vol 80 (17) ◽  
pp. 6537-6544 ◽  
Author(s):  
Thomas A. Schmitz ◽  
Gerardo Gamez ◽  
Patrick D. Setz ◽  
Liang Zhu ◽  
Renato Zenobi

1998 ◽  
Vol 794 (1-2) ◽  
pp. 377-389 ◽  
Author(s):  
Jing-Tao Wu ◽  
Mark G Qian ◽  
Michael X Li ◽  
Kefei Zheng ◽  
Peiqing Huang ◽  
...  

2019 ◽  
Vol 12 (10) ◽  
pp. 5231-5246 ◽  
Author(s):  
Markus Leiminger ◽  
Stefan Feil ◽  
Paul Mutschlechner ◽  
Arttu Ylisirniö ◽  
Daniel Gunsch ◽  
...  

Abstract. Here we present an alternative approach of an atmospheric pressure interface (APi) time-of-flight mass spectrometer for the study of atmospheric ions and cluster ions, the so-called ioniAPi-TOF. The novelty is the use of two hexapoles as ion guides within the APi. In our case, hexapoles can accept and transmit a broad mass range enabling the study of small precursor ions and heavy cluster ions at the same time. Weakly bound cluster ions can easily de-cluster during ion transfer depending on the voltages applied to the ion transfer optics. With the example system of H3O+(H2O)n=0-3, we estimate that cluster ions with higher binding energies than 17 kcal mol−1 can be transferred through the APi without significant fragmentation, which is considerably lower than about 25 kcal mol−1 estimated from the literature for APi-TOFs with quadrupole ion guides. In contrast to the low-fragmenting ion transfer, the hexapoles can be set to a high-fragmenting declustering mode for collision-induced dissociation (CID) experiments as well. The ion transmission efficiency over a broad mass range was determined to be on the order of 1 %, which is comparable to existing instrumentation. From measurements under well-controlled conditions during the CLOUD experiment, we demonstrate the instrument's performance and present results from an inter-comparison with a quadrupole-based APi-TOF.


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