Molecules (Nov 2022)

The Development of New Methodology for Determination of Vincristine (VCR) in Human Serum Using LC-MS/MS-Based Method for Medical Diagnostics

  • Kamil Jurowski,
  • Łukasz Paprotny,
  • Marcin Zakrzewski,
  • Dorota Wianowska,
  • Joanna Kasprzyk-Pochopień,
  • Małgorzata Herman,
  • Katarzyna Madej,
  • Wojciech Piekoszewski,
  • Tomasz Kubrak

DOI
https://doi.org/10.3390/molecules27227945
Journal volume & issue
Vol. 27, no. 22
p. 7945

Abstract

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In this article, we have presented the development and validation of a rapid and sensitive reversed-phase liquid chromatography with tandem mass spectrometry (LC-MS/MS) method for the determination of vincristine (VCR) in patient serum samples. Chromatographic separation was achieved on a Kinetex® (Singapore) column using a mobile phase consisting of 25 mM acetic acid and 0.3% formic acid (A) and methanol (B) in a gradient elution mode at a flow rate of 0.3 mL/min. The VCR and internal standard (vinblastine) were monitored using the multiple reaction monitoring mode under positive electrospray ionization. The lower limit of quantification (LLOQ) was 0.67 ng/mL, and the upper limit of quantification (ULOQ) was 250 ng/mL for VCR. The calculated values of LOD and LOQ for VCR were 0.075 and 0.228 ng/mL, respectively. The calibration curve was linear over the VCR concentration range of 1.0–250 ng/mL in serum. The intra- and inter-day precision and precision were within the generally accepted criteria for the bioanalytical method (<15%). The method was successfully applied to the analysis of serum samples in clinical practice.

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