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Mar 28, 2018 | Blogs, Life Science Research, Lipidomics | 0 comments
Lipidomics research has progressed rapidly in the last decade. Twenty years ago, the determination of the lipid composition of a biological sample required slow and extensive multi-dimensional chromatographic separation and chemical derivatization strategies. Today, in-depth analysis can be performed quickly using high throughput analysis by mass spectrometry.
Advances in mass spectrometry have enabled in-depth lipidomic analyses with unparalleled qualitative and quantitative sensitivity. However, unambiguous identification and quantitation of lipid molecular species in total lipid extracts has proven to be difficult, primarily due to isobaric overlapping isobaric and isomeric species. There are greater than 100,000 lipid molecular species present in a typical biological lipid extract that occupy a narrow mass range (~400-1100 amu), making such overlap a significant problem.
SelexION Technology represents the next technological advance and is uniquely suited for lipidomic research. Using Differential Mobility Separation (DMS) as an upfront orthogonal separation enables the resolution of complex lipid mixtures, effectively addressing the problem of isobaric interferences among different lipid classes and sub-classes.
Key Features of SelexION Technology for Lipid Analysis
SelexION Technology is a planar differential mobility device that separates analytes based on differences in their chemical properties, prior to entering the instrument orifice, thus providing an orthogonal level of selectivity.
Read our technical paper to see how we effectively resolves multiple lipid classes from complex mixtures prior to analysis by mass spectrometry. By removing isobaric and isomeric interferences, lipid analysis by QTRAP systems using SelexION Technology enables more confident identification of lipid molecular species and provides for more accurate relative quantitation by MS/MS.
We recently hosted a webinar focused on streamlining forensic toxicology workflows, featuring expert speakers Maria Sarkisian from the San Francisco Office of the Chief Medical Examiner (SFOCME) and Dr. Dick Paul Kloos from the Netherlands Forensic Institute (NFI). The webinar explored innovative LC-MS/MS strategies that help forensic labs improve efficiency. In this blog, we share highlights from the Q&A session, where our speakers addressed the audience’s questions and shared actionable insights for forensic laboratory professionals.
We’re excited to launch our Ask the PFAS expert series, where we tackle some of the most pressing questions around PFAS testing, containment, and contamination control. In this first instalment, we sit down with Simon Roberts, a SCIEX application scientist, to share practical insights and expert advice.
Thanks to Starbucks, who launched the pumpkin spice latte in 2003 (yes, over 20 years ago), the spice mixture became a global phenomenon, loved and disliked at the same time.
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