Published 1998 | Version v1
Miscellaneous Metadata-only

Spectrochemical pure cerium dioxide preparation and its quality control by inductively coupled plasma and mass spectrometry (ICP/MS)

Creators

  • 1. Comissao Nacional de Energia Nuclear, Sao Paulo, (Brazil). Instituto de Pesquisas Energeticas e Nucleares

Description

Full text: A simple and economic procedure for the purification until 500 g CeO2 batch is presented. The purified material will be used as spectrochemical standard. It is obtained by association of the fractional precipitation technique in the system REC3/H2O2/NH4OH to enrich the cerium up to 90% and then refined by ion exchange up to 99.9% CeO2. The 99,9% CeO2 warranty control of purity was accomplished by inductively coupled plasma and mass spectrometry (ICP/ MS) and compared with activation analysis data, exhibiting impurities traces of same values of the international spec pure standard. The following results (average values) for the contaminant rare earths are (ppm):La(36), Pr(19), Nd(161), Sm(11), Eu(5,3),Gd(113),Tb(89),Dy(2),Ho(0.05),Er(1), Tm(0), Yb(11), Lu (19) and Y(2.1), respectively

Part of:
Rare earths'98. The international rare earths conference, including radio lanthanides in nuclear medicine therapy. Programme and abstracts

Additional details

Publishing Information

Imprint Title
Rare earths'98. The international rare earths conference, including radio lanthanides in nuclear medicine therapy. New technologies for the 21st century. Programme and abstracts
Imprint Pagination
125 p.
Journal Page Range
p. 100

Conference

Title
Rare earths'98. New technologies for the 21st Century
Dates
25-30 Oct 1998
Place
Fremantle, WA (Australia)

INIS

Country of Publication
Australia
Country of Input or Organization
Australia
INIS RN
32044247
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Resource subtype / Literary indicator
Conference, Non-conventional Literature
Descriptors DEI
CERIUM OXIDES; CHEMICAL PREPARATION; ICP MASS SPECTROSCOPY; IMPURITIES; ION EXCHANGE; QUALITY CONTROL; STOICHIOMETRY; TRACE AMOUNTS
Descriptors DEC
CERIUM COMPOUNDS; CHALCOGENIDES; CONTROL; MASS SPECTROSCOPY; OXIDES; OXYGEN COMPOUNDS; RARE EARTH COMPOUNDS; SPECTROSCOPY; SYNTHESIS

Optional Information

Notes
This record replaces 31022547 Imprint:The full text of the papers presented at the conference could be found in Materials Science Forum (1999), Vols. 315-317