
Quantification of free sialic acid in human plasma through a robust quinoxalinone derivatization and LC–MS/MS using isotope-labeled standard calibration
Keywords: ضریب تغییرات; CV, coefficient of variation; DAT, 3,4-diaminotoluene; DMB, 12-diamino-4,5-methylenedioxybenzene; ESI, electrospray ionization; IS, internal standard; ILSC, isotope-labeled standard calibration; KDN, ketodeoxynonulosonic acid; LLOQ, lower limit of quantif