Standardization and application of external (in air) Particle Induced Gamma Emission (PIGE) method for rapid and non-destructive quantification of light elements at major to trace concentrations in coal, bottom ash and coke samples

Coal is an important energy source and its quality evaluation in terms of ash content and other element like B and F is a necessity. An external (in air) Particle...

ELEMENT ANALYSIS OF TEETH FROM CHILDREN WITH AND WITHOUT CYSTIC FIBROSIS BY PIXE-PIGE

The objective of this research is to determine whether there is a difference in the Ca, P, Fe, F, Mg, and Sr concentrations in teeth from children with and without cystic fibrosis (CF) as a function of age, sex of the child, maternal smoking habit, maternal drinking habit, and fluoridation of water supply. The nuclear analytical methods used were Proton-Induced X-Ray Emission (PIXE) and Proton-Induced Gamma Emission (PIGE). The findings are: (1) the concentration of Mg is higher in the teeth of children with cystic fibrosis who took antibiotics other than tetracycline (CF+NT) than in non-cystic fibrosis (NCF) teeth for the “female” category; (2) P concentration is less in (CF+NT) teeth for the “age greater than ten” group; (3) Fe concentration is greater for females in the NCF group; (4) Ca and Fe concentrations are lower for CF than for NCF in the “mother smokes” group; (5) F and Sr concentrations for CF+NT are higher for the “mother drinks” group than for the “mother does not drink” group; (6) “mother smokes” shows a depletion of Ca and Fe compared to “mother does not smoke” for CF+NT. (7) “fluoridation of water supply” shows an increase in F, except for NCF teeth.