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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Determination of palonosetron in human plasma by liquid chromatography-electrospray ionization-mass spectrometry.

A high performance liquid chromatography-electrospray ionization-mass spectrometry (HPLC-ESI-MS) method for the determination of palonosetron (PALO) in human plasma using naloxone as the internal standard (IS) was established. After adjustment to a weakly basic pH with saturated sodium bicarbonate, plasma samples were extracted with ethyl acetate and separated on a Hanbon Lichrospher 5-C18 column with a mobile phase of 40 mM ammonium acetate buffer solution containing 0.04% formic acid-methanol (46:54, v/v). PALO was determined with electrospray ionization-mass spectrometry (ESI-MS). HPLC-ESI-MS was performed in the selected-ion monitoring (SIM) mode using target ions at [M+H]+ m/z 297.2 for PALO and [M+H]+ m/z 328.2 for the IS. Calibration curve was linear over the range of 0.02124-10.62 ng/ml. The lower limit of quantification (LLOQ) was 0.02124 ng/ml. The intra- and inter-run variability values were all less than 10.4%. The method has been successfully applied to determine the plasma concentration of PALO in healthy Chinese volunteers.[1]

References

  1. Determination of palonosetron in human plasma by liquid chromatography-electrospray ionization-mass spectrometry. Ding, L., Chen, Y., Yang, L., Wen, A. J. Pharm. Biomed. Anal (2007) [Pubmed]
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