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Solid-phase extraction coupled with liquid chromatography–tandem mass spectrometry for determination of trace rosiglitazone in urine

This project evaluated solid-phase extraction (SPE) combined with liquid chromatography–tandem mass spectrometry (LC–MS/MS) to determine the trace amount of rosiglitazone in human urine. The analytical performance of four modes of LC–MS and tandem MS operation (atmospheric pressure chemical ionizati...

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Bibliographic Details
Published in:Journal of Chromatography A 2005-12, Vol.1097 (1), p.74-83
Main Authors: Chou, Chi-Chi, Lee, Maw-Rong, Cheng, Fu-Chou, Yang, Dar-Yu
Format: Article
Language:English
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Summary:This project evaluated solid-phase extraction (SPE) combined with liquid chromatography–tandem mass spectrometry (LC–MS/MS) to determine the trace amount of rosiglitazone in human urine. The analytical performance of four modes of LC–MS and tandem MS operation (atmospheric pressure chemical ionization (APCI), electrospray ionization (ESI), positive and negative ionization) was compared for two mass spectrometers, a triple-quadrupole and a quadrupole ion trap instrument. Rosiglitazone was extracted from urine using a SPE cartridge of 50 mg C8 sorbent and acetonitrile used as the eluting solvent. Samples were then separated on a RP18 column interfaced with a tandem mass spectrometer. The recovery of rosiglitazone was greater than 91.2%. The urine assay combining SPE and LC–APCI-MS/MS of triple-quadrupole was proved a very selective and sensitive method for determination of trace rosiglitazone. The assay was linear over a wide range, with a lower limit of quantification of 0.1 ng/mL using 1 mL of urine. The intra- and inter-day precisions were
ISSN:0021-9673
DOI:10.1016/j.chroma.2005.08.033