Simplified liquid-chromatographic determination of vancomycin

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:

• 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.