High-pressure liquid chromatography analysis and single-dose disposition of tobramycin in human volunteers.


A sensitive and specific fluorometric high-pressure liquid chromatography technique was developed to measure both tobramycin and an internal standard (gentamicin C2). The assay utilizes direct extraction of the o-phthalaldehyde derivatives from serum and urine. Coefficients of variation were 7.9% (serum) and 6.0% (urine) at a tobramycin concentration of 1.0… (More)


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