alexa Ion-paired reversed-phase high-performance liquid chromatography assay for determination of ceftriaxone in human plasma and urine.
Chemical Engineering

Chemical Engineering

Journal of Chromatography & Separation Techniques

Author(s): Jungbluth GL, Jusko WJ

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Abstract A rapid, sensitive, and specific ion-paired reversed-phase HPLC assay for ceftriaxone in human plasma and urine is described. Small volumes (50 microL) of sample are deproteinized with acetonitrile and are directly injected on a C18 analytical column. The UV absorbance is monitored at 280 nm. The assay is linear between 1 and 125 micrograms/mL of ceftriaxone, with less than 10\% coefficient of both intra- and interday variation. Chromatography was specific for ceftriaxone as endogenous compounds and 30 common drugs did not interfere. The assay was used in open heart surgery patients where potential interference from corticosteroids was overcome.
This article was published in J Pharm Sci and referenced in Journal of Chromatography & Separation Techniques

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