Abstract
Accurate and sensitive liquid-chromatography tandem mass spectrometry method for the quantification of tenofovir and emtricitabine in seminal plasma has been developed and full validated. Molecules were separated by high-performance liquid chromatography on an Atlantis T3 C18 column using a gradient of deionized water and methanol, including 0.05% formic acid (250 μl/min) and detected by electrospray ionisation/tandem mass spectrometry in positive ion mode. The method was validated over a clinical range of 3.13–1000 ng/mL for tenofovir and 6.25–2000 ng/mL for emtricitabine. Inter and intra-assay precisions were <9.37% for tenofovir and<10.88% for emtricitabine, and accuracies were between 0.48% and 8.43% for tenofovir, and between 0.64% and 13.87% for emtricitabine. The developed method was successfully applied for analysing tenofovir and emtricitabine concentrations in seminal plasma samples from a clinical study. The use of tandem mass spectrometry can be a suitable method for the analysis of this kind of matrices, providing high sensitivity and specificity to the analysis.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 234-241 |
| Number of pages | 8 |
| Journal | Journal of Chromatography B: Analytical Technologies in the Biomedical and Life Sciences |
| Volume | 1033-1034 |
| DOIs | |
| State | Published - Oct 15 2016 |
| Externally published | Yes |
Bibliographical note
Funding Information:We acknowledge the French National Agency for Research on AIDS and Viral Hepatitis (ANRS) for sponsoring the EVARIST study. We also acknowledge SIDACTION for the financial support of this work.
Publisher Copyright:
© 2016 Elsevier B.V.
Keywords
- Emtricitabine
- LC–MS/MS
- Seminal plasma
- Tenofovir