THE X RAY ABSORPTION SPECTRUM OF THE CHORIOALLANTOIC MEMBRANE OF CHICK EMBRYO AND THE EMISSION SPECTRUM OF THE ASH OF THE EGG OF THE DOMESTIC FOWL: A PRELIMINARY COMMUNICATION

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Carbon ◽  
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2018 ◽  
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According to L-edge sum rules, the number of 3d vacancies at a transition metal site is directly proportional to the integrated intensity of the L-edge X-ray absorption spectrum (XAS) for the corresponding metal complex.


1997 ◽  
Vol 11 (16n17) ◽  
pp. 745-748 ◽  
Author(s):  
Rebekah Min-Fang Hsu ◽  
Kai-Jan Lin ◽  
Cheng Tien ◽  
Lin-Yan Jang

X-ray absorption fine structure XAFS spectroscopy has been used to determine the valence system for the Fe atom in ilmenite, FeTiO3 . This is the first XAFS data in FeTiO3 to our knowledge. The α- Fe2O3 data served as the standard in determining the ionization of the Fe atom in FeTiO3 . Observation of intensity and k-space are consistent. There was no evidence of mixed valence on comparing the FeTiO3 near edge X-ray absorption spectrum with α- Fe2O3 data. The absorption spectra suggest that iron is in the trivalent state in ilmenite.


2019 ◽  
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pp. 0330002 ◽  
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陈振华 Chen Zhenhua ◽  
李俊琴 Li Junqin ◽  
赵子龙 Zhao Zilong ◽  
桑卓成 Sang Zhuocheng ◽  
邹鹰 Zou Ying ◽  
...  

2012 ◽  
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