Abstract
A 3.7 MeV external proton beam was employed to produce X-rays in Pinus rigida Mill /pitch pine/ intra-annual growth rings and several elements were quantitatively determined. The PIXE experimental set-up, rapid sample preparation methods, and some interesting observations are discussed. In addition, statistical analysis of the tree-ring element concentrations revealed that Cl, K and Ca were slightly translocated whereas the other elements detected were not. The concentrations of several elements in the rings were negatively correlated with annual stream water pH which reflected precipitation pH.
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Hall, G.S., Naumann, M. Element analysis of Pinus rigida intra-annual growth rings by photon-induced X-ray emission. Journal of Radioanalytical and Nuclear Chemistry Letters 87, 317–330 (1984). https://doi.org/10.1007/BF02165938
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DOI: https://doi.org/10.1007/BF02165938