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An Alternative to Direct Probe: Pyroprobe Coupled to High Resolution Time-of-Flight Mass Spectrometry
EP22855
Poster Title: An Alternative to Direct Probe: Pyroprobe Coupled to High Resolution Time-of-Flight Mass Spectrometry
Submitted on 09 Mar 2015
Author(s): Jonathan D. Byer, Joe Binkley, Karen Sam, Jeff Patrick
Affiliations: LECO Corporation, CDS Analytical
This poster was presented at Pittcon Conference
Poster Views: 1,297
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Poster Information
Abstract: Direct probe analysis is a common option for the rapid characterization of non-GC amenable liquids or solids having low vapor pressures. The objective of this study was to compare direct probe to Direct Pyroprobe analyses. The benefit of using a Pyroprobe to perform this analysis was the added versatility compared to direct probes. Liquids or solids could be introduced via a quartz tube, or placed directly onto a ribbon filament, and thermally desorbed or pyrolysed. Also, because the Pyroprobe is interfaced directly with the GC inlet, it is possible to perform distillation cut-type experiments or chromatographic separations if required.Summary: Direct Pyroprobe is not a substitute for direct probe, but there is some overlap, as well as additional functionality. Direct probes coupled to LECO Pegasus instruments provide unique features:
– Time-of-flight mass spectra which shows little-to-no spectral skewing
– Automatic peak finding and spectral deconvolution for better identification
– Pegasus HT has a very low maintenance source which is beneficial for direct analysis techniques
References: Jonathan D. Byer, Joe Binkley, Karen Sam, Jeff PatrickReport abuse »
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