title: A comparative study of APLI and APCI in IMS at atmospheric pressure to reveal and explain peak broadening effects by the use of APLI.
abstract: The details of the ionization mechanism in atmospheric pressure are still not completely known. In order to obtain further insight into the occurring processes in atmospheric pressure laser ionization (APLI) a comparative study of atmospheric pressure chemical ionization (APCI) and APLI is presented in this paper. This study is carried out using similar experimental condition at atmospheric pressure employing a commercial ion mobility spectrometer (IMS). Two different peak broadening mechanisms can then be assigned, one related to a range of different species generated and detected, and furthermore for the first time a power broadening effect on the signals can be identified.
authors.affiliation: Institute of Physical Chemistry, Christian-Albrechts-Universität zu Kiel, Max-Eyth-Str.1, 24118 Kiel, Germany. grote@phc.uni-kiel.de.
authors.forename: Marvin
authors.initials: M
authors.lastname: Ihlenborg
authors.affiliation: Institute of Physical Chemistry, Christian-Albrechts-Universität zu Kiel, Max-Eyth-Str.1, 24118 Kiel, Germany. grote@phc.uni-kiel.de.
authors.forename: Björn
authors.initials: B
authors.lastname: Raupers
authors.affiliation: Physics Department, German University in Cairo, New Cairo City, Cairo, Egypt.
authors.forename: Frank
authors.initials: F
authors.lastname: Gunzer
authors.affiliation: Institute of Physical Chemistry, Christian-Albrechts-Universität zu Kiel, Max-Eyth-Str.1, 24118 Kiel, Germany. grote@phc.uni-kiel.de.
authors.forename: Jürgen
authors.initials: J
authors.lastname: Grotemeyer