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Analyst

Title:		A corona discharge atmospheric pressure chemical ionization source with selective NO(+) formation and its application for monoaromatic VOC detection
Author(s):		Sabo M; Matejcik S;
Address:		"Comenius University, Faculty of Mathematics, Physics and Informatics, Department of Experimental Physics, Mlynska dolina F2 842 48 Bratislava, Slovakia. matejcik@fmph.uniba.sk"
Journal Title:		Analyst
Year:		2013
Volume:		138
Issue:		22
Page Number:		6907 - 6912
DOI:		10.1039/c3an00964e
ISSN/ISBN:		1364-5528 (Electronic) 0003-2654 (Linking)
Abstract:		"We have developed a new type of corona discharge (CD) for atmospheric pressure chemical ionization (APCI) for application in ion mobility spectrometry (IMS) as well as in mass spectrometry (MS). While the other CD-APCI sources are able to generate H3O(+).(H2O)n as the major reactant ions in N2 or in zero air, the present CD-APCI source has the ability to generate up to 84% NO(+).(H2O)n reactant ions in zero air. The change of the working gas from zero air to N2 allows us to change the major reactant ions from NO(+).(H2O)n to H3O(+).(H2O)n. In this paper we present the description of the new CD-APCI and discuss the processes associated with the NO(+) formation. The selective formation of NO(+).(H2O)n reactant ions offers chemical ionization based on these ions which can be of great advantage for some classes of chemicals. We demonstrate here a significant increase in the sensitivity of the IMS-MS instrument for monoaromatic volatile organic compound (VOC) detection upon NO(+).(H2O)n chemical ionization"
Keywords:
Notes:		"PubMed-not-MEDLINESabo, Martin Matejcik, Stefan eng England 2013/10/02 Analyst. 2013 Nov 21; 138(22):6907-12. doi: 10.1039/c3an00964e"