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Efficacy of a lead based paint XRF analyzer and a commercially available colorimetric lead test kit as qualitative field tools for determining presence of lead in religious powders.
- Source :
-
Journal of Occupational & Environmental Hygiene . Jul2018, Vol. 15 Issue 7, p541-548. 8p. 5 Charts. - Publication Year :
- 2018
-
Abstract
- The performances of a portable X-Ray Fluorescence (XRF) lead paint analyzer (RMD LPA-1, Protec Instrument Corp., Waltham, MA) and a commercially available colorimetric lead test kit (First Alert Lead Test Kit, eAccess Solutions, Inc., Palatine, IL) were evaluated for use by local or state health departments as potential cost-effective rapid analysis or “spot test” field techniques for tentative identification of lead content in sindoor powders. For both field-sampling methods, sensitivity, specificity and predictive values varied widely for samples containing <300,000 µg/g lead. For samples containing ≥300,000 µg/g lead, the aforementioned metrics were 100% (however, the CIs had a wide range). In addition, both field sampling methods showed clear, consistent positive readings only for samples containing ≥300,000 µg/g lead. Even samples with lead content as high as 5,110 µg/g were not positively identified by either field analysis technique. The results of this study suggest the XRF analyzer and colorimetric lead test kit cannot be used as a rapid field test for sindoor by health department inspectors. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 15459624
- Volume :
- 15
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- Journal of Occupational & Environmental Hygiene
- Publication Type :
- Academic Journal
- Accession number :
- 130263939
- Full Text :
- https://doi.org/10.1080/15459624.2018.1468078