3.3. Correlation of Bone Pb Concentrations between KXRF and Portable XRF. Measurements were made to validate the portable XRF system against the standard KXRF systems for in vivo bone Pb measurements. Phantoms, goat bones, and cadaver bones with 0, 1, 2, and 3 mm of Lucite were measured by both systems, with goat bone also being measured at 4 and 5 mm of Lucite thickness. Table 2 shows the measured phantom Pb concentrations at different Lucite thicknesses.
The correlation (