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Related Experiment Videos

Improved method for morphine determination in biological fluids and tissues: rapid, sensitive and selective.

C F McLean1, L E Mather, J Odontiadis

  • 1Department of Anaesthesia and Intensive Care, Flinders Medical Centre, Bedford Park, South Australia, Australia.

The Journal of Pharmacy and Pharmacology
|September 1, 1990
PubMed
Summary

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This study presents a rapid method for morphine analysis using normal phase high-performance liquid chromatography (HPLC) and coulometric detection. The technique offers high sensitivity and selectivity, making it ideal for pharmacokinetic research.

Area of Science:

  • Analytical Chemistry
  • Pharmacology
  • Biochemistry

Background:

  • Accurate quantification of morphine is crucial for pharmacokinetic studies.
  • Traditional methods for morphine assay can be time-consuming and prone to interference.

Purpose of the Study:

  • To develop and validate a streamlined analytical method for morphine quantification.
  • To enhance selectivity and sensitivity in morphine assays for biological samples.

Main Methods:

  • A two-step sample preparation involving solvent extraction and acid back-extraction.
  • Normal phase high-performance liquid chromatography (HPLC) utilizing a silica column.
  • Dual electrode coulometric detection for enhanced selectivity and sensitivity.

Main Results:

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  • The method achieved excellent sensitivity with a limit of detection of 0.5 ng/mL.
  • Normal phase HPLC effectively minimized interference from lipophilic compounds.
  • High reproducibility and stability were demonstrated for automated sample analysis.

Conclusions:

  • The developed method provides a rapid, selective, and sensitive approach for morphine analysis.
  • This technique is well-suited for routine pharmacokinetic studies, improving efficiency and reliability.