Determination of fentanyl and alfentanil in plasma by high-performance liquid chromatography with ultraviolet detection.

@article{Kumar1987DeterminationOF,
  title={Determination of fentanyl and alfentanil in plasma by high-performance liquid chromatography with ultraviolet detection.},
  author={K. N. Dharani Kumar and Denis J. Morgan and David P. Crankshaw},
  journal={Journal of chromatography},
  year={1987},
  volume={419},
  pages={464-8}
}