Validation of X-ray fluorescence-measured Swine femur lead against atomic absorption spectrometry. | Zendy

Andrew C. Todd | Zendy; Erin Moshier | Zendy; Spencer Carroll | Zendy; Stan W. Casteel | Zendy

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Validation of X-ray fluorescence-measured Swine femur lead against atomic absorption spectrometry.

Author(s) -

Andrew C. Todd,

Erin Moshier,

Spencer Carroll,

Stan W. Casteel

Publication year - 2001

Publication title -

environmental health perspectives

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.257

H-Index - 282

eISSN - 1552-9924

pISSN - 0091-6765

DOI - 10.1289/ehp.011091115

Subject(s) - femur , lead (geology) , chemistry , atomic absorption spectroscopy , x ray fluorescence , absorption (acoustics) , radiochemistry , analytical chemistry (journal) , nuclear medicine , fluorescence , materials science , environmental chemistry , medicine , surgery , biology , paleontology , physics , quantum mechanics , composite material

The aim of this study was to apply the technique of (109)Cd-based K-shell X-ray fluorescence (XRF) bone lead measurements to swine femurs and to validate the concentrations obtained therefrom against an independent chemical measurement of bone lead: atomic absorption spectrometry (AAS). The femurs ranged in lead concentration from 1.0 to 24.5 microg of lead per gram of ashed bone, as measured by AAS. On average, XRF overestimated AAS-measured femur lead by 2.6 microg/g [95% confidence interval (CI), 1.1-4.0 microg/g], approximately 2 microg/g poorer than that observed in studies of human tibiae. Measurements of swine femur and, by extension, of nonhuman bones may require adjustment of the XRF spectrum peak extraction method.

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