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Related Experiment Videos

High perfomance liquid chromatography in pharmaceutical analyses.

Branko Nikolin1, Belma Imamović, Saira Medanhodzić-Vuk

  • 1Faculty of Pharmacy, University of Sarajevo.

Bosnian Journal of Basic Medical Sciences
|January 5, 2005
PubMed
Summary

High performance liquid chromatography (HPLC) is now the primary method for pharmaceutical analysis, replacing older techniques. Its versatile mobile and stationary phases, coupled with sensitive detectors, enable accurate drug identification and quantification in complex biological samples.

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Area of Science:

  • Analytical Chemistry
  • Pharmaceutical Analysis
  • Chromatography

Background:

  • High performance liquid chromatography (HPLC) has largely superseded spectroscopic methods and gas chromatography in pharmaceutical analysis over the past decade.
  • HPLC's advantages include adaptable mobile phases for varied analyte characteristics and a wide selection of stationary phases for effective separation.
  • Sensitive detector systems, including UV/VIS, fluorescence, electrochemical, and hyphenated techniques like HPLC-MS and HPLC-NMR, underpin HPLC's broad applicability.

Purpose of the Study:

  • To confirm drug identity and provide quantitative results for drug analysis.
  • To monitor disease therapy progress through drug and metabolite analysis in biological fluids.
  • To advance understanding of normal and disease processes via biomedical and therapeutic research.

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Main Methods:

  • Analysis of drugs and metabolites in biological fluids (plasma, serum, urine) using HPLC.
  • Utilized various detectors: UV/VIS, diode array, fluorescence, electrochemical, mass spectrometry (HPLC-MS), and NMR (HPLC-NMR).
  • Employed diverse chromatographic techniques including reversed-phase, ion-exchange, ion-pair, and micellar liquid chromatography with various stationary phases and eluents.

Main Results:

  • HPLC enables precise separation and quantification of drugs and metabolites from complex biological matrices, overcoming challenges like low analyte concentrations and interfering endogenous compounds.
  • Specific detectors like fluorescence and electrochemical methods offer superior sensitivity and selectivity compared to UV/VIS for certain analytes.
  • Advanced techniques like micellar liquid chromatography allow direct analysis of samples without protein precipitation, reducing sample preparation complexity and solvent toxicity.

Conclusions:

  • High performance liquid chromatography is an indispensable tool for pharmaceutical analysis, offering superior separation capabilities and sensitivity.
  • The choice of stationary phase, mobile phase, and detector system is critical for optimizing the analysis of diverse drug compounds in biological fluids.
  • Ongoing advancements in HPLC technology, including new packing materials and microbore columns, continue to enhance analytical efficiency and reduce environmental impact.