Validation and implementation of a liquid chromatography/tandem mass spectrometry assay to quantitate ON 01910.Na, a mitotic progression modulator, in human plasma Academic Article uri icon


MeSH Major

  • Chromatography, Liquid
  • Glycine
  • Mitosis
  • Sulfones
  • Tandem Mass Spectrometry


  • A reverse-phase high performance liquid chromatographic method with tandem mass spectrometry (LC-MS/MS) was developed and validated for the quantitation of ON 01910.Na, a novel synthetic benzyl styryl sulfone, in human plasma. The assay involved a simple sample preparation with acetonitrile protein precipitation. ON 01910.Na and the internal standard temazepam were separated on a Waters X-Terra MS C(18) column with mobile phase of acetonitrile containing 0.1% formic acid /10mM ammonium acetate (55:45, v/v) using isocratic flow at 0.2 mL/min for 5 min. The analytes were monitored by tandem-mass spectrometry with electrospray positive ionization. Two calibration curves were generated over the range of 10-2000 ng/mL and 100-20000 ng/mL. The lower limit of quantitation (LLOQ) was 10 ng/mL for ON 01910.Na in human plasma. The accuracy and within- and between-day precisions were within the acceptance criteria for bioanalytical assays. ON 01910.Na was found stable in plasma at -70 degrees C for at least 1 year. The method was successfully applied to characterize the plasma concentration-time profiles of ON 01910.Na in the cancer patients in the Phase I study.

publication date

  • September 2007



  • Academic Article



  • eng

PubMed Central ID

  • PMC4286291

Digital Object Identifier (DOI)

  • 10.1016/j.jchromb.2007.05.047

PubMed ID

  • 17588831

Additional Document Info

start page

  • 198

end page

  • 204


  • 856


  • 1-2