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Evaluation of wipe sampling materials for lead in surface dust
M Millson1, P M Eller, K Ashley
1U.S. Department of Health and Human Services, National Institute for Occupational Safety and Health, Cincinnati, Ohio 45226.
American Industrial Hygiene Association Journal
|April 1, 1994
Summary
This study evaluated wipe sampling materials for lead dust analysis. Optimal materials showed low background lead, easy digestion, high lead recovery, and field usability.
Area of Science:
- Environmental Science
- Analytical Chemistry
- Occupational Health
Background:
- Lead dust on surfaces is a significant environmental and health concern.
- Accurate lead determination requires effective dust sampling methods.
- Evaluating sampling materials is crucial for reliable lead analysis.
Purpose of the Study:
- To assess the suitability of commercial wipe materials for lead dust determination.
- To establish criteria for selecting appropriate wipe sampling materials for field and lab use.
Main Methods:
- Evaluation of commercially available wipe sampling materials.
- Assessment of background lead levels in wipe materials (< 5 micrograms).
- Testing ease of digestion using nitric acid/hydrogen peroxide or nitric acid/perchloric acid.
- Quantifying lead recovery from standard reference material spikes (target >= 80%).
- Considering ease of use for field applications.
Main Results:
- Identified key criteria for selecting effective wipe materials.
- Demonstrated the importance of material background lead levels and digestion efficiency.
- Confirmed the need for high lead recovery rates for accurate quantification.
- Highlighted the practical aspect of field usability for sampling materials.
Conclusions:
- Several commercial wipe materials are suitable for lead dust analysis.
- Established criteria provide a framework for selecting optimal wipe sampling materials.
- Further evaluation of other candidate materials using similar methods is recommended.