Target analyte quantification by isotope dilution LC-MS/MS directly referring to internal standard concentrations-validation for serum cortisol measurement

Maier, Barbara und Vogeser, Michael (April 2013): Target analyte quantification by isotope dilution LC-MS/MS directly referring to internal standard concentrations-validation for serum cortisol measurement. In: Clinical chemistry and laboratory medicine : CCLM / FESCC, Bd. 51, Nr. 4: S. 833-837

Abstract

Isotope dilution LC-MS/MS methods used in the clinical laboratory typically involve multi-point external calibration in each analytical series. Our aim was to test the hypothesis that determination of target analyte concentrations directly derived from the relation of the target analyte peak area to the peak area of a corresponding stable isotope labelled internal standard compound [direct isotope dilution analysis (DIDA)] may be not inferior to conventional external calibration with respect to accuracy and reproducibility.

• Dokumententyp: Zeitschriftenartikel
• Publikationsform: Publisher's Version
• Fakultät: Medizin
• Themengebiete: 600 Technik, Medizin, angewandte Wissenschaften > 610 Medizin und Gesundheit
• ISSN: 1437-4331
• Allianz-/Nationallizenz: Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
• Sprache: Englisch