Emma Macturk from LECO Corporation explains which forensic applications benefit from GC×GC’s greater peak capacity, and when the additional separation power may only provide limited benefits.
|Articles|May 19, 2010
E-Separation Solutions
- E-Separation Solutions-05-20-2010
- Volume 0
- Issue 0
Reliable Analysis of the Light Ends of Petroleum Fractions Using Capillary Flow Backflushing
In this article, Roger L. Firor discusses how capillary flow technology improves the time-tested practice of backflushing in petrochemical analysis.
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In this article, Roger L. Firor discusses how capillary flow technology improves the time-tested practice of backflushing in petrochemical analysis. It utilizes a purged ultimate union with virtually zero dead volume and inert connections, as well as precise midpoint pressure control, for high resolution separations. The end result is the ability to fine-tune backflush times to produce precise fraction cuts, with less maintenance and better thermal control than conventional backflush technology
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Koji Yamaguchi of the International University of Health and Welfare (Narita, Japan) discusses a novel derivatized liquid chromatography-tandem mass spectrometry (LC-MS/MS) method plus propofol glucuronide (PRG) marker which improves forensic propofol detection.
Gas chromatography-mass spectrometry (GC-MS) coupled with headspace solid-phase microextraction )HS-SPME) links cocoa variety to chocolate aroma and flavor profiles.
Liquid chromatography-tandem mass spectrometry (LC-MS/MS) identifies blood metabolite patterns tied to children's diets.
Lorna Nisbet from the Leverhulme Research Centre for Forensic Science, discusses a GC–MS. technique developed to detect anabolic-androgenic steroids in e-cigarettes seized from Scottish prisons.
Kirstine Nielsen of Aarhus University (Denmark) discusses how targeted metabolomics ratios helped build a robust bloodstain time-since-deposition tool.
This new liquid chromatography-tandem mass spectrometry- quadrupole ion trap (LC-MS/MS-QTRAP) method identifies rat poisons in cat forensic cases.
Gérard Hopfgartner explains how atmospheric pressure photoionization can generate radical cations in LC–MS, unlocking EI-style spectra and NIST's spectral library.
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