Issue 22, 2015

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.

Graphical abstract: A comparative study of APLI and APCI in IMS at atmospheric pressure to reveal and explain peak broadening effects by the use of APLI

Article information

Article type
Paper
Submitted
28 Jul 2015
Accepted
26 Sep 2015
First published
28 Sep 2015

Analyst, 2015,140, 7565-7571

Author version available

A comparative study of APLI and APCI in IMS at atmospheric pressure to reveal and explain peak broadening effects by the use of APLI

M. Ihlenborg, B. Raupers, F. Gunzer and J. Grotemeyer, Analyst, 2015, 140, 7565 DOI: 10.1039/C5AN01532D

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