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Related Experiment Videos

Bioanalysis of cimetidine by high-performance liquid chromatography.

J M Bartlett, A B Segelman

    Journal of Chromatography
    |January 21, 1983
    PubMed
    Summary

    A new high-performance liquid chromatography method accurately quantifies cimetidine in body fluids. This rapid technique simplifies analysis by eliminating extensive sample preparation, improving bioavailability studies.

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    Area of Science:

    • Pharmacology
    • Analytical Chemistry
    • Biochemistry

    Background:

    • Cimetidine is a histamine H2-receptor antagonist used for gastric acid-related disorders.
    • Accurate quantification of cimetidine in biological fluids is crucial for bioavailability studies.
    • Existing methods for cimetidine analysis often involve complex and time-consuming extraction procedures.

    Purpose of the Study:

    • To develop a rapid, reliable, and simplified method for quantifying cimetidine in body fluids.
    • To improve the efficiency of cimetidine bioavailability studies.
    • To enable simultaneous determination of cimetidine and its metabolites.

    Main Methods:

    • Direct adsorption of cimetidine from urine or plasma onto a C18 mini-column (Sep-Pak C18).
    • Elution of cimetidine using acetonitrile.
    • High-performance reversed-phase liquid chromatography (HPLC) analysis on a Partisil 10 ODS column.
    • UV detection at 228 nm with an aqueous phosphate-methanol mobile phase.

    Main Results:

    • The developed HPLC method is rapid, accurate, and precise for cimetidine quantification.
    • The procedure eliminates the need for tedious dual-phase solvent extractions.
    • Minor adjustments to the mobile phase allow for concurrent analysis of cimetidine metabolites.

    Conclusions:

    • This novel HPLC method offers a significant improvement for analyzing cimetidine in biological samples.
    • The simplified approach enhances the practicality of pharmacokinetic and bioavailability studies.
    • The method's adaptability facilitates comprehensive analysis of cimetidine and its metabolic products.

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