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Related Concept Videos

High-Performance Liquid Chromatography: Elution Process01:05

High-Performance Liquid Chromatography: Elution Process

In High-Performance Liquid Chromatography (HPLC), the elution process is critical to the separation of analytes and the quality of chromatographic results. Elution describes how compounds move through the column and separate based on their interactions with the mobile and stationary phases. This process determines the resolution, peak shape, and retention times in the chromatogram, which are essential for identifying and quantifying components in complex mixtures. Understanding the elution...

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Related Experiment Video

Updated: Jul 15, 2026

Multiplex Therapeutic Drug Monitoring by Isotope-dilution HPLC-MS/MS of Antibiotics in Critical Illnesses
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Published on: August 30, 2018

Simplified liquid-chromatographic determination of vancomycin.

A F Rosenthal, I Sarfati, E A'Zary

    Clinical Chemistry
    |June 1, 1986
    PubMed
    Summary

    This study presents a simplified method for determining vancomycin in serum using solvent precipitation and an internal standard. The rapid and reproducible assay offers a practical alternative for clinical laboratories.

    Area of Science:

    • Clinical Chemistry
    • Analytical Chemistry
    • Pharmacokinetics

    Background:

    • Accurate vancomycin serum level monitoring is crucial for therapeutic efficacy and toxicity management.
    • Existing methods for vancomycin determination can be time-consuming or complex.

    Purpose of the Study:

    • To develop a simplified, rapid, and reproducible method for serum vancomycin determination.
    • To validate the developed method against a standard immunoassay technique.

    Main Methods:

    • Direct protein precipitation using a simple solvent.
    • Utilizing an organic compound as an internal standard for quantification.
    • Optimization of the mobile phase to improve vancomycin retention time reproducibility.

    Main Results:

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    • The new method demonstrated high reproducibility for vancomycin retention time.
    • Results obtained using the novel method showed good correlation with fluorescence polarization immunoassay (FPIA).
    • Minimal bias was observed between the developed method and FPIA.

    Conclusions:

    • The simplified solvent precipitation method is a rapid and practical approach for serum vancomycin analysis.
    • This assay is suitable for routine use in many clinical laboratories.
    • The method provides reliable results comparable to established techniques.