Research Article
Portable XRF Technology to Quantify Pb in Bone In Vivo
Table 2
Phantom Pb concentrations calculated using the background subtraction method.
| Standard phantom ppm | Lucite thickness | 0 mm | 1 mm | 2 mm | 3 mm |
| 0 | −0.38 ± 0.8 | −0.1 ± 1.3 | −2.22 ± 2.1 | 3.31 ± 3.31 | 5 | 4.83 ± 0.86 | 3.57 ± 1.34 | 9.61 ± 2.19 | 7.37 ± 3.37 | 10 | 10.23 ± 0.9 | 10.5 ± 1.39 | 11.23 ± 2.19 | 17.83 ± 3.42 | 15 | 14.9 ± 0.94 | 13.3 ± 1.4 | 20.37 ± 2.27 | 13.39 ± 3.41 | 20 | 19.52 ± 0.97 | 19.17 ± 1.46 | 21.25 ± 2.27 | 17.37 ± 3.46 | 30 | 31.32 ± 1.06 | 30.09 ± 1.53 | 30.35 ± 2.36 | 32.34 ± 3.56 | 50 | 47.45 ± 1.17 | 52.76 ± 1.7 | 49.43 ± 2.48 | 48.54 ± 3.7 | 75 | 75.56 ± 1.33 | 77.44 ± 1.85 | 74.49 ± 2.65 | 74.34 ± 3.82 | 100 | 96.96 ± 1.44 | 108.65 ± 2.02 | 105.26 ± 2.84 | 101.73 ± 4.06 |
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