2016
High-throughput measurement of 25-hydroxyvitamin D by LC–MS/MS with separation of the C3-epimer interference for pediatric populations
Yang Y, Rogers K, Wardle R, El-Khoury JM. High-throughput measurement of 25-hydroxyvitamin D by LC–MS/MS with separation of the C3-epimer interference for pediatric populations. Clinica Chimica Acta 2016, 454: 102-106. PMID: 26772722, DOI: 10.1016/j.cca.2016.01.004.Peer-Reviewed Original Research
2012
Highly sensitive and selective measurement of underivatized methylmalonic acid in serum and plasma by liquid chromatography-tandem mass spectrometry
Yuan C, Gabler J, El-Khoury JM, Spatholt R, Wang S. Highly sensitive and selective measurement of underivatized methylmalonic acid in serum and plasma by liquid chromatography-tandem mass spectrometry. Analytical And Bioanalytical Chemistry 2012, 404: 133-140. PMID: 22618327, DOI: 10.1007/s00216-012-6099-z.Peer-Reviewed Original ResearchMeSH KeywordsChromatography, High Pressure LiquidFemaleHumansMaleMethylmalonic AcidPlasmaSensitivity and SpecificitySerumSolid Phase ExtractionTandem Mass SpectrometryConceptsLC-MS/MS methodSample preparationMS methodAnion exchange solid phase extractionChromatography-tandem mass spectrometry methodLiquid chromatography-tandem mass spectrometry methodNegative electrospray modeSuccinic acidOrganic acid columnStrong anion-exchange solid-phase extractionSolid-phase extraction