Determination of C1-C4 alkanes by ion mobility spectrometry
1991; American Chemical Society; Volume: 63; Issue: 20 Linguagem: Inglês
10.1021/ac00020a019
ISSN1520-6882
AutoresDaniel R. Kojiro, Martin J. Cohen, Robert M. Stimac, Roger F. Wernlund, Donald E. Humphry, Norishige Takeuchi,
Tópico(s)Chemistry and Stereochemistry Studies
ResumoFlight instrumentation for the analyses of extraterrestrial environments must often perform under severely restricted conditions. Often, the detection and identification of a multitude of chemical species is required to fulfill the scientific objectives of the mission. It is therefore important that the analytical instrumentation have universal response. The gas chromatograph-ion mobility spectrometer (GC-IMS) has the potential to provide the sample separation, identification and sensitivity necessary for a successful analysis. However, the IMS has poor sensitivity for the C1-C4 alkanes. The abundance of these molecules at various extraterrestrial sites is often of great importance to exobiologists. This study focuses on optimizing IMS sample ionization mechanisms for the C1-C4 alkanes and other hydrocarbons of interest to exobiology.
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