Open AccessDetermination of the content of impurity elements in a sample of high purity India by the method of radiochemical neutron activation analysis
Author(s) -
I. I. Sadikov,
B. Kh. Yarmatov,
T. Usmanov,
Z.O. Sadikova
Publication year - 2022
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2155/1/012023
Subject(s) - neutron activation analysis , impurity , radiochemistry , radionuclide , indium , chemistry , matrix (chemical analysis) , neutron activation , extraction (chemistry) , tributyl phosphate , detection limit , analytical chemistry (journal) , neutron , chromatography , nuclear physics , physics , organic chemistry
The present article is devoted to the development of a method for neutron activation analysis of a microimpurity composition of high-purity indium with the radiochemical separation of indium radionuclides from radionuclides of the determined elements by extraction chromatography in the system tributyl phosphate (TBP) - solutions of hydrobromic acid (HBr). Neutron activation analysis (NAA) has a special place among the physical methods for determining the trace composition of high-purity substances. Low detection limits, the possibility of simultaneous determination of a large number of impurity elements from one sample, no correction for the control experiment, the possibility of using inactive carriers in separating traces of radionuclides of impurity elements from matrix elements ensured the widespread use of NAA in the analysis of highly pure substances. The developed technique allows separating matrix radionuclides from radionuclides of impurity elements with high efficiency and determination of 28 impurity elements in high-purity indium with detection limits of 0.7 ppm to 0.05 ppb.