期刊
JOURNAL OF SYNCHROTRON RADIATION
卷 8, 期 -, 页码 255-257出版社
MUNKSGAARD INT PUBL LTD
DOI: 10.1107/S0909049500019555
关键词
Ca L(3,2-)edge XANES
The Ca L-3,L-2-edge XANES spectra of six calcium salts have been measured in both total electron and fluorescence yields using a high-resolution spherical grating monochromator. The compounds investigated were; CaF2, CaCO3, CaCl2. 2H(2)O, calcium phosphate, calcium glycerophosphate and calcium gluconate. We find that the fine structure of the Ca L-3,L-2-edges for each compound is unique and relates to the local structure of the Ca atom. The implications of these results to the study of the structure of calcium binding sites in systems of biologically interest will be discussed.
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