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[Development of a method for determining lead blood levels with chronopotentiometry]
H Mathieu1, F Le Moigne, G Panteix
1Laboratoire Bioffice, Bordeaux. mathieu.henri-p@wanadoo.fr
Annales De Biologie Clinique
|January 9, 2004
Summary
A new potentiometric stripping analysis method accurately determines blood lead levels. This cost-effective technique offers rapid results, making it ideal for clinical laboratories.
Area of Science:
- Analytical Chemistry
- Environmental Science
Context:
- Blood lead determination is crucial for public health.
- Existing methods can be time-consuming and expensive.
Purpose:
- To investigate a novel potentiometric stripping analysis (PSA) method for blood lead determination.
- To establish a rapid, accurate, and cost-effective alternative for clinical settings.
Summary:
- A PSA method using hemoglobin precipitation with hydrochloric and perchloric acids was developed.
- This method allows for simplified calibration and improved sensitivity and precision.
- Analysis time is 3 minutes per sample with a detection limit of 0.006 microM/L.
Impact:
- The PSA method demonstrates high correlation (R=0.991) with graphite furnace atomic absorption spectrometry.
- It offers a less expensive and convenient alternative for routine blood lead analysis in clinical laboratories.