Ultrasensitive Quantification of Serum Vitamin D Metabolites Using Selective Solid-Phase Extraction Coupled to Microflow Liquid Chromatography and Isotope-Dilution Mass Spectrometry - Duan, Xiaotao; Weinstock-Guttman, Bianca; Wang, Hao; Bang, Eunjin; Li, Jun; Ramanathan, Murali; Qu, Jun (Analytical chemistry (Washington), 2010)
Keywords: Adult; Analytical chemistry; Autoimmune diseases; Chemistry; Chromatographic methods and physical methods associated with chromatography; Chromatography; Chromatography, Liquid - methods; Exact sciences and technology; Female; Humans; Immunoassay; Ionization; Limit of Detection; Liquid chromatography; Male; Mass spectrometry; Mass Spectrometry - methods; Metabolites; Middle Aged; Miscellaneous; Multiple sclerosis; Other chromatographic methods; Solid Phase Extraction - methods; Spectrometric and optical methods; Vitamin D; Vitamin D - blood; Vitamin D - metabolism; Solid phase extraction; Metabolite; Suppression; Vitamin; Time; Derivatization; Immunological method; Accuracy; Endogenous; Sample preparation; Loading; Efficiency; Detection limit; Serum; Quantitative analysis; Human; Fluid mechanics; Sample; Ultratrace compound; Interference; Isotope dilution; Error; Liquid chromatography; Sensitivity; Ionization; Volume; Linearity; Mass spectrometry MS/MS; Large scale; Mass spectrometry; Microfluidics