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MCI Project Summaries 2008 - Smithsonian Institution

MCI Project Summaries 2008 - Smithsonian Institution

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<strong>MCI</strong> 6068.2 XRF Training for Heavy Metal Pesticide Identification<br />

<strong>MCI</strong> Staff: R. Jeff Speakman, Odile Madden<br />

<strong>MCI</strong> provided assistance with upgrading and standardizing the use of NMAI's new<br />

NITON portable XRF analyzer for the identification of heavy metal pesticide contamination of<br />

NMAI's collections to help ensure health and safety of NMAI staff and constituents and to<br />

further the standardization and quantification of portable XRF analysis of heavy metal<br />

contamination.<br />

<strong>MCI</strong> 6108 Northern Great Plains Painted Hides<br />

<strong>MCI</strong> Staff: Lynn B. Brostoff, Fabien Pottier<br />

Painted hides from the Northern Great Plains collection were examined to determine the<br />

pigments used on them. The initial study focused on the yellow-green and the red pigments on a<br />

Crow buffalo hide. Pigments were analyzed by X-ray diffraction spectroscopy and portable Xray<br />

fluorescence spectroscopy, and neutron activation analysis; results were compared to<br />

materials and techniques described in the historical and ethnographic records and to a published<br />

study of similar pigments.<br />

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