title: Comparison of high-performance liquid chromatography and bioassay of amphotericin B in serum.
abstract: For the determination of amphotericin B in serum a high-performance liquid chromatography (HPLC) method using simple protein precipitation and an isocratic mobile phase as well as a plate diffusion bioassay are described. Using 5-fluorocytosine-resistant strain of Candida albicans and peptone in medium as an antagonist of 5-fluorocytosine allows simple measurement of amphotericin B both in the absence and in the presence of 5-fluorocytosine. The correlation coefficient (r) between bioassay and HPLC runs is 0.88. Generally, the biological determination gives slightly higher values of amphotericin B than the HPLC method. Both methods are useful for amphotericin B drug monitoring.
authors.affiliation: Institute of Medical Microbiology, University of Essen, Germany.
authors.forename: J W
authors.initials: JW
authors.lastname: Hülsewede
authors.forename: H
authors.initials: H
authors.lastname: Dermoumi
mesh_terms: D000666:Amphotericin B / Q000097:blood*; D001681:Biological Assay / Q000379:methods*; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D016903:Drug Monitoring / Q000379:methods; D006801:Humans
chemical_list: D000666:Amphotericin B