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A simple and rapid analytical method based on solid-phase extraction and liquid chromatography–tandem mass spectrometry for the simultaneous determination of free catecholamines and metanephrines in urine and its application to routine clinical analysis
Keywords: EPI، اپی نفرین; CAP, College of American Pathologists; CV, coefficient of variation; DA, dopamine; EPI, epinephrine; ESI, electrospray ionization; HILIC, hydrophilic interaction liquid chromatography; LC–MS/MS, liquid chromatography separation coupled to tandem mass spec