TY - JOUR
T1 - Sample preparation methods of tree-rings for PIXE-PIGE multielemental analysis
AU - Hall, Gene S.
N1 - Funding Information:
This research was supported by grants from the United States National Science Foundation and the Department of Agriculture. Thanks are extended to the Tree-ring Lab at Lamont-Doherty for dating the tree-rings and to the personnel at the Rutgers Nuclear Physics Laboratory.
PY - 1990/4/2
Y1 - 1990/4/2
N2 - Tree-rings were collected from various sites within the United States to investigate the effects of atmospheric deposition on the growth of trees. Three different sample preparations were investigated to maximize detection limits and sample throughput, and to minimize element losses and sample contamination. The preparation methods included dry ashing at 450° C, cryogenic pulverization, and microwave wet digestion. Since PIXE-PIGE was used to determine the elements Li-U in the tree-rings at low concentrations, the method of cryogenic pulverization could not be used. Dry ashing was the preferred method and it was used to analyze the trace element concentrations in individual tree-rings. Detailed sample preparation methods are described along with applications for studying the affects of climate on the uptake of different elements in the rings.
AB - Tree-rings were collected from various sites within the United States to investigate the effects of atmospheric deposition on the growth of trees. Three different sample preparations were investigated to maximize detection limits and sample throughput, and to minimize element losses and sample contamination. The preparation methods included dry ashing at 450° C, cryogenic pulverization, and microwave wet digestion. Since PIXE-PIGE was used to determine the elements Li-U in the tree-rings at low concentrations, the method of cryogenic pulverization could not be used. Dry ashing was the preferred method and it was used to analyze the trace element concentrations in individual tree-rings. Detailed sample preparation methods are described along with applications for studying the affects of climate on the uptake of different elements in the rings.
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U2 - 10.1016/0168-583X(90)90216-H
DO - 10.1016/0168-583X(90)90216-H
M3 - Article
AN - SCOPUS:0041316381
SN - 0168-583X
VL - 49
SP - 60
EP - 64
JO - Nuclear Inst. and Methods in Physics Research, B
JF - Nuclear Inst. and Methods in Physics Research, B
IS - 1-4
ER -