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- W2078099876 abstract "In this communication, we report the development of a new ultra-performance liquid chromatographic/tandem mass spectrometry (UPLC–MS–MS) assay for measurement of amrubicin (an anthracycline anti-cancer agent) and its active metabolite, amrubicinol, in plasma. The enhanced electrospray ionization signal intensity of the analytes achieved by modifying the mobile phase with formic acid was associated with improvement in the lower limit of quantification. These favorable effects were electrolyte concentration-dependent. In order to maximize assay throughput, we used methanol protein precipitation to prepare the plasma samples, and simplified sample preparation by injecting 40 μL of the supernatant containing methanol at 87.5% (v/v) directly onto the UPLC column without any intermediary solvent evaporation step. The large-volume injection of highly organic supernatant sample increased matrix and elutropic effects, but these drawbacks were respectively overcome by using a 5 mM formic acid-modified mobile phase and a new pulse gradient method. To our knowledge, this is the first report successfully using large-volume injection of strong organic samples with UPLC–MS–MS bioanalysis. The pulse gradient elution also resulted in band compression and enhanced the robustness of the chromatography. The promising new approach illustrated herein is extremely straightforward to optimize, and may be used for UPLC–MS–MS bioanalytical assay of other compounds." @default.
- W2078099876 created "2016-06-24" @default.
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- W2078099876 date "2008-06-01" @default.
- W2078099876 modified "2023-10-16" @default.
- W2078099876 title "Pulse gradient, large-volume injection, high-throughput ultra-performance liquid chromatographic/tandem mass spectrometry bioanalysis for measurement of plasma amrubicin and its metabolite amrubicinol" @default.
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- W2078099876 doi "https://doi.org/10.1016/j.chroma.2008.04.014" @default.
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