Henthorn, T.K., Liu, Y., Mahapatro, M. and Ka-Yun, N.G. (1999 Active Transport of Fentanyl by the Blood-Brain Barrier. Journal of Pharmacology and Experimental Therapeutics, 289, 1084-1089.

has been cited by the following article:

• TITLE: Membrane Separator Interface for Mass-Spectrometric Analysis of Desflurane, Propofol and Fentanyl in Plasma and Cerebrospinal Fluid

  AUTHORS: V. Yu. Cherebillo, V. N. Sokolov, V. A. Elokhin, V. I. Nikolaev, A. V. Polegaev, A. Yu. Elizarov

  KEYWORDS: Membrane, Mass-Spectrometer, Anesthesia, Desflurane, Fentanyl

  JOURNAL NAME: International Journal of Medical Physics, Clinical Engineering and Radiation Oncology, Vol.4 No.4, October 29, 2015

  ABSTRACT: Mass-spectrometric interface for the measurement of anaesthetic agent concentration in biological fluids (blood plasma and cerebrospinal fluid) is described. Sampling of biological fluids was performed during balanced inhalational (desflurane, fentanyl) anaesthesia and total intravenous (propofol, fentanyl) anaesthesia. The described method for drug concentration measurement in biologic fluids does not require long-term sample processing before injecting the sample into mass-spectrometer interface, in contrast to chromatographic methods. A hydrophobic membrane was used in the interface to separate anaesthetic agents from biological fluids: inhalational anaesthetic desflurane, hypnotic propofol, analgesic fentanyl. A possibility to use the interface for measurement of desflurane and propofol absolute concentration in blood plasma and cerebrospinal fluid was demonstrated for the study of blood-brain barrier (BBB) properties.