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Related Experiment Videos

Chloramphenicol: an enzymological microassay

P S Lietman, T J White, W V Shaw

    Antimicrobial Agents and Chemotherapy
    |August 1, 1976
    PubMed
    Summary

    A novel assay accurately measures chloramphenicol in biological samples using an enzymatic method. This sensitive and specific technique is ideal for clinical labs, offering reliable results with minimal sample volume.

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    Area of Science:

    • Biochemistry
    • Analytical Chemistry
    • Clinical Diagnostics

    Background:

    • Chloramphenicol is a broad-spectrum antibiotic requiring therapeutic drug monitoring.
    • Existing assays may lack sensitivity, specificity, or ease of use for clinical applications.

    Purpose of the Study:

    • To develop a sensitive, specific, and efficient assay for quantifying chloramphenicol in biological fluids.
    • To validate the assay's performance for clinical laboratory use.

    Main Methods:

    • Enzymatic acetylation of chloramphenicol using an R factor-mediated enzyme and [(14)C]acetyl coenzyme A.
    • Separation of the labeled product [(14)C]acetoxychloramphenicol via benzene extraction.
    • Quantification of the product using liquid scintillation counting.

    Main Results:

    • The assay demonstrates high sensitivity, specificity, precision, and accuracy.
    • It effectively measures chloramphenicol in plasma and other biological specimens.
    • The method is robust, performing reliably in the presence of common interfering substances like hemolysis or jaundice.

    Conclusions:

    • A new, reliable enzymatic assay for chloramphenicol has been established.
    • The assay's ease of performance, sensitivity, and accuracy make it suitable for routine clinical laboratory analysis.
    • This method facilitates efficient therapeutic drug monitoring of chloramphenicol.

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