You are here:
DEVELOPMENT OF A FIELD TEST METHOD FOR THE DETERMINATION OF LEAD IN PAINT, AND PAINT-CONTAMINATED DUST AND SOIL
Citation:
Grohse, P., K. Luk, L. Hodson, B. Wilson, S. Harper, M. Beard, B. Lim, AND J. Breen. DEVELOPMENT OF A FIELD TEST METHOD FOR THE DETERMINATION OF LEAD IN PAINT, AND PAINT-CONTAMINATED DUST AND SOIL. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/A-93/064.
Description:
A rapid, simple, inexpensive, and relatively accurate field test method for the determination of lead (Pb) in paints, dusts, and soils has been developed. The method involves the ultrasonic leaching of 0.19 - 0.5g of the sample in 5 mL of 25% (v/v) nitric acid for 30 minutes followed by colorimetric measurement with a commercially available field test kit. A variety of actual field samples and several National Institute of Standards and Technology (NIST) Standard Reference Materials (SRMs) were tested using the proposed method. Results were compared with those obtained employing a microwave, total digestion method followed by inductively coupled plasma emission measurement. Lead recovery and method precision were better than 84% and 11%, respectively, for a variety of SRMs and field samples. No species encountered in the samples were found to interfere in the measurement. This paper has been reviewed in accordance with the U.S. Environmental Protection Agency peer and administrative review policies and approved for presentation and publication. Mention of trade names or commercial products does not constitute endorsement or recommendation for use.