Published March 1994
| Version v1
Journal article
Determination of impurities in niobium metal by a radiochemical neutron activation analysis
- 1. Mining and Materials, Daejeon (Korea, Republic of). Korea Inst. of Geology
Description
A radiochemical separation method using an anion exchange resin has been applied to 3N grade Nb for determining nine impurity elements. Five elements (Cr, Fe, Co, Zn and Se) were separated in 2M HF, three elements (Mo, W and Hf) in 32M HF, Nb in 0.5M HF/3M HCl, and Ta in 1M NH4F/4M NH4Cl. The contents of the elements were calculated by a single comparator method using two monitors of Au and Co. The main impurity was revealed to be a Ta with a content of over 160 ppm. (author) 14 refs.; 1 fig.; 2 tabs
Additional details
Publishing Information
- Journal Title
- Journal of Radioanalytical and Nuclear Chemistry
- Journal Volume
- 179
- Journal Issue
- 1
- Journal Page Range
- p. 81-86.
- ISSN
- 0236-5731
- CODEN
- JRNCDM
Conference
- Title
- 2. International symposium on nuclear analytical chemistry.
- Acronym
- NAC-II
- Dates
- 3-5 Jun 1992.
- Place
- Toronto, ON (Canada).
INIS
- Country of Publication
- Hungary
- Country of Input or Organization
- Hungary
- INIS RN
- 25046654
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- IMPURITIES; ION EXCHANGE MATERIALS; IRRADIATION PROCEDURES; NEUTRON ACTIVATION ANALYSIS; NIOBIUM; SEPARATION PROCESSES; TRACER TECHNIQUES
- Descriptors DEC
- ACTIVATION ANALYSIS; CHEMICAL ANALYSIS; ELEMENTS; ISOTOPE APPLICATIONS; MATERIALS; METALS; NONDESTRUCTIVE ANALYSIS; TRANSITION ELEMENTS