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- W2022263713 abstract "A sensitive method for the determination of lapatinib (GW572016) in human plasma was developed using high-performance liquid chromatographic separation with tandem mass spectrometric detection. Plasma samples (100 microL) were prepared using solid phase extraction (SPE) columns, and 6.0 microL of the reconstituted eluate was injected onto a Phenomenex CuroSil-PFP 3 mu analytical column (50 mm x 2.0mm) with an isocratic mobile phase. Analytes were detected with a PE SCIEX API-365 LC-MS/MS system at unit (Q1) and low (Q3) resolution in positive multiple reaction monitoring mode (m/z 581 (precursor ion) to m/z 364 (product ion) for lapatinib). The mean recovery for lapatinib was 75% with a lower limit of quantification of 15 ng/mL (S/N=11.3, CV< or =14%). This method was validated over a linear range of 100-10,000 ng/mL, and results from a 5-day validation study demonstrated good within-day and between-day precision and accuracy. This method has been used to measure plasma lapatinib concentrations in a Phase I study in children with cancer." @default.
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- W2022263713 date "2006-02-01" @default.
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- W2022263713 title "Determination of lapatinib (GW572016) in human plasma by liquid chromatography electrospray tandem mass spectrometry (LC–ESI-MS/MS)" @default.
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- W2022263713 doi "https://doi.org/10.1016/j.jchromb.2005.11.044" @default.
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