Episode 27: Unlocking Hemoglobin Variant Detection: LC-HR-MS Breakthrough with Ainslie Chen
In this episode of the Concentrating on Chromatography podcast, host David Oliva interviews Ainslie Chen about her cutting-edge research on hemoglobin variant testing using liquid chromatography-high resolution mass spectrometry (LC-HR-MS). Ainslie discusses her novel method for separating and identifying hemoglobin subunits with mass shifts less than 1 Da, overcoming critical limitations in conventional clinical assays.Hear firsthand how her team developed an LC-HR-MS workflow using a C4 reversed-phase column, tackled technical challenges (including why C18 columns fell short), and achieved unprecedented sensitivity for variant detection in both adult and neonatal samples. The conversation touches on the potential of mass spectrometry to revolutionize clinical diagnostics, the importance of reproducibility, barriers to adoption in routine labs, and how teamwork drives scientific innovation.Perfect for analytical chemists, clinical laboratorians, and anyone interested in the future of protein variant analysis, this episode also features Ainslie’s advice for early-career scientists and insights from her first ACS poster presentation.Key Highlights:- Motivation behind improving hemoglobinopathy testing - Technical advantages of LC-HR-MS over gene sequencing and CE - The crucial role of the C4 column in resolving challenging samples - Critical parameters for reproducible LC-HR-MS workflows - Barriers and outlook for clinical adoption of advanced mass spectrometry - The value of teamwork and mentorship in scientific research - Direct insights from recent ACS conference experiencesIf you’re curious about where analytical chemistry meets clinical medicine and the innovations shaping the next generation of diagnostic tools, don’t miss this illuminating interview!#LCHRMS #HemoglobinVariants #AnalyticalChemistry #ClinicalDiagnostics #Chromatography #MassSpectrometry