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Quantitative determination of rimantadine in human plasma and urine by GC–MS
Author(s) -
Fukuda Elaine K.,
Rodriguez Lolita C.,
Choma Nadia,
Keigher Nancy,
De Grazia Francis,
Garland William A.
Publication year - 1987
Publication title -
biomedical and environmental mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0887-6134
DOI - 10.1002/bms.1200141004
Subject(s) - rimantadine , chemistry , chromatography , urine , chemical ionization , amantadine , mass spectrometry , ion , influenza a virus , ionization , virus , pharmacology , virology , medicine , biochemistry , organic chemistry
A GC–MS procedure has been developed for the quantitation in plasma and urine of rimantadine, an antiviral drug effective against type A influenza. The assay utilizes selective ion monitoring, methane negative ion chemical ionization (NCI) and stable isotope dilution. Sensitivity to NCI is effected by derivation of rimantadine with pentafluorobenzoyl chloride. The method has been used to quantitate plasma concentrations of rimantadine over a range from 4.2 ng/ml to 416 ng/ml, and urinary concentrations of rimantadine over a range of 21 ng/ml to 2077 ng/ml.