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Kβ 2 / K β 1,3 X‐ray intensity ratios of arsenic, selenium and bromine in various chemical states (chemical state analyses of As, Se and Br by X‐ray method. 4 )
Author(s) -
Iwatsuki Masaaki,
Fukasawa Tsutomu
Publication year - 1987
Publication title -
x‐ray spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.447
H-Index - 45
eISSN - 1097-4539
pISSN - 0049-8246
DOI - 10.1002/xrs.1300160207
Subject(s) - bromine , selenium , arsenic , analytical chemistry (journal) , chemistry , intensity (physics) , dilution , ion , absorption (acoustics) , inorganic chemistry , materials science , environmental chemistry , thermodynamics , optics , physics , organic chemistry , composite material
A dilution method of correction for a strong self‐absorption effect on the measurements of Kβ 2 /Kβ 1,3 intensity ratios of arsenic, selenium and bromine is described. The intrinsic intensity ratios obtained by the method are given and discussed for these elements in various states in powder and solution samples. The results are as follows: (1) the intensity ratio increases in the order As < Se < Br; (2) any element with a negative oxidation number gives a considerably larger intensity ratio than the same element with a positive or zero oxidation number; (3) the atoms surrounded by stronger electron donors give a larger intensity ratio; (4) a solution sample of a substance gives a larger intensity ratio than its powder sample, except for arsenic compounds; (5) a dilute solution sample below 0.1 M gives a larger intensity ratio than its concentrated solution sample, and its ratio is little affected by coexisting ions.