Pure hydroxyapatite phantoms for the calibration of in vivo X-ray fluorescence systems of bone lead and strontium quantification.
作者： Eric Da Silva , Brian Kirkham , Darrick V. Heyd , Ana Pejović-Milić
DOI: 10.1021/AC401877D
关键词:
摘要: Plaster of Paris [poP, CaSO4·(1)/(2) H2O] is the standard phantom material used for calibration in vivo X-ray fluorescence (IVXRF)-based systems bone metal quantification (i.e strontium and lead). Calibration IVXRF employs use a coherent normalization procedure which requires application correction factor (CCF) to data, calculated as ratio relativistic form factors mineral. Various issues have been raised suitability poP include its chemical purity difference from mineral (a calcium phosphate). This work describes preparation chemically pure hydroxyapatite material, known composition stoichiometry, proposed purpose calibrating lead replacement poP. The issue with contamination by t...
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