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[A sensitive, specific colorimetric method for determining paracetamol in human plasma (author's transl)]
Arzneimittel-Forschung
|January 1, 1980
Summary
A new colorimetric assay offers sensitive and specific detection of paracetamol (acetaminophen) in plasma. This efficient method uses column extraction and provides accurate results with a low detection limit.
Area of Science:
- Clinical Chemistry
- Analytical Chemistry
Context:
- Accurate quantification of paracetamol (acetaminophen) in plasma is crucial for therapeutic drug monitoring and overdose management.
- Existing extraction methods can be time-consuming and prone to emulsion formation, complicating analysis.
Purpose:
- To develop and validate a sensitive, specific, and efficient colorimetric assay for paracetamol determination in plasma.
- To improve upon existing methods by reducing analysis time, minimizing sample volume, and avoiding emulsion formation.
Summary:
- A novel colorimetric assay utilizing selective Extrelut column extraction and hydrolysis for paracetamol (acetaminophen) quantification in plasma is presented.
- The method, performed entirely in centrifuge tubes, achieves high recovery (90%) and a low limit of detection (0.2 microgram/ml) due to minimal blank values.
- Coefficients of variation are 4% at 10 microgram/ml and 10% at 2 microgram/ml, with no emulsion formation, allowing for high throughput (50 analyses/day/person).
Impact:
- Provides a rapid, reliable, and cost-effective method for paracetamol analysis in clinical laboratories.
- Enhances patient care through improved therapeutic drug monitoring and faster diagnosis in overdose cases.
- Offers a significant improvement over traditional extraction techniques, streamlining laboratory workflows.