Abstract
A cation-exchange separation method has been developed for separating the rare earth elements from scandium, using hydrobromic acid as the eluent. Optimum conditions, chosen on the basis of tracer experiments, are: Dowex 50W-X8,200-400 mesh resin, 6.5-7 M HBr, and a flow rate of less than 0.9 cm/min. Under these conditions more thdn 99% of the REE are recovered in the first 12 column volumes of eluent, while leaving all the scandium on the column, and separation factors of 102-103 are readily attainable. This method has been used for radiochemical neutron activation analysis of meteorites, in conjunction with a procedure for determination of 19 sidero-phile or volatile elements. It is faster than the conventional hydroxide-fluoride precipitation, and hence permits a large number of samples to be processed simultaneously.
| Original language | English |
|---|---|
| Pages (from-to) | 241-246 |
| Number of pages | 6 |
| Journal | Analytical Sciences |
| Volume | 1 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 1985 Jan 1 |
| Externally published | Yes |
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Keywords
- cation exchange
- meteorites
- Neutron activation analysis
- rare earth elements
- scandium
ASJC Scopus subject areas
- Analytical Chemistry
Cite this
Separation of Rare Earth Elements and Scandium by Cation Exchange with Particular Reference to Radiochemical Neutron Activation Analysis of Geochemical Samples. / Ebihara, Mitsuru.
In: Analytical Sciences, Vol. 1, No. 3, 01.01.1985, p. 241-246.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Separation of Rare Earth Elements and Scandium by Cation Exchange with Particular Reference to Radiochemical Neutron Activation Analysis of Geochemical Samples
AU - Ebihara, Mitsuru
PY - 1985/1/1
Y1 - 1985/1/1
N2 - A cation-exchange separation method has been developed for separating the rare earth elements from scandium, using hydrobromic acid as the eluent. Optimum conditions, chosen on the basis of tracer experiments, are: Dowex 50W-X8,200-400 mesh resin, 6.5-7 M HBr, and a flow rate of less than 0.9 cm/min. Under these conditions more thdn 99% of the REE are recovered in the first 12 column volumes of eluent, while leaving all the scandium on the column, and separation factors of 102-103 are readily attainable. This method has been used for radiochemical neutron activation analysis of meteorites, in conjunction with a procedure for determination of 19 sidero-phile or volatile elements. It is faster than the conventional hydroxide-fluoride precipitation, and hence permits a large number of samples to be processed simultaneously.
AB - A cation-exchange separation method has been developed for separating the rare earth elements from scandium, using hydrobromic acid as the eluent. Optimum conditions, chosen on the basis of tracer experiments, are: Dowex 50W-X8,200-400 mesh resin, 6.5-7 M HBr, and a flow rate of less than 0.9 cm/min. Under these conditions more thdn 99% of the REE are recovered in the first 12 column volumes of eluent, while leaving all the scandium on the column, and separation factors of 102-103 are readily attainable. This method has been used for radiochemical neutron activation analysis of meteorites, in conjunction with a procedure for determination of 19 sidero-phile or volatile elements. It is faster than the conventional hydroxide-fluoride precipitation, and hence permits a large number of samples to be processed simultaneously.
KW - cation exchange
KW - meteorites
KW - Neutron activation analysis
KW - rare earth elements
KW - scandium
UR - http://www.scopus.com/inward/record.url?scp=84998276147&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84998276147&partnerID=8YFLogxK
U2 - 10.2116/analsci.1.241
DO - 10.2116/analsci.1.241
M3 - Article
AN - SCOPUS:84998276147
VL - 1
SP - 241
EP - 246
JO - Analytical Sciences
JF - Analytical Sciences
SN - 0910-6340
IS - 3
ER -