Abstract
An on-line analysis system using a solid-phase extraction column coupled to electrochemical detection has been developed for the rapid determination of small amounts of uranium in liquid waste samples of spent nuclear-fuel reprocessing plants. A sample solution with a concentration of 3 M HNO3 was loaded onto a column: packed with U/TEVA© resin. The interference elements were rinsed by passing 3 M HNO3 through the column. The adsorbed uranium was eluted with 0.1 M HNO3. The eluate was directly introduced into a flow-electrolysis cell. The reduction current of U(VI) → U(V) was monitored and recorded. The uranium concentration was calculated from the relation between the peak current and the concentration of the standard uranium solution. The result of five repeated analyses for a standard solution containing 2.5 μg (0.1 mL at 25 μg mL-1) of uranium was found to be 2.5 ±0.025 μg (mean ±1σ). The detection limit calculated from 3-times the standard deviation of the background current was 56 ng. The analysis time required for one sample was within 5 min. The recoveries of uranium in actual nuclear waste reprocessing solutions were 92~112%.
| Original language | English |
|---|---|
| Pages (from-to) | 901-907 |
| Number of pages | 7 |
| Journal | bunseki kagaku |
| Volume | 58 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - Dec 22 2009 |
| Externally published | Yes |
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All Science Journal Classification (ASJC) codes
- Analytical Chemistry
Cite this
Rapid determination of trace uranium in liquid wastes from spent nuclear-fuel reprocessing plants using on-line solid-phase extraction/electrochemical detection. / Taguchi, Shigeo; Surugaya, Naoki; Kurosawa, Akira; Hiyama, Toshiaki; Tanaka, Tatsuhiko.
In: bunseki kagaku, Vol. 58, No. 10, 22.12.2009, p. 901-907.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Rapid determination of trace uranium in liquid wastes from spent nuclear-fuel reprocessing plants using on-line solid-phase extraction/electrochemical detection
AU - Taguchi, Shigeo
AU - Surugaya, Naoki
AU - Kurosawa, Akira
AU - Hiyama, Toshiaki
AU - Tanaka, Tatsuhiko
PY - 2009/12/22
Y1 - 2009/12/22
N2 - An on-line analysis system using a solid-phase extraction column coupled to electrochemical detection has been developed for the rapid determination of small amounts of uranium in liquid waste samples of spent nuclear-fuel reprocessing plants. A sample solution with a concentration of 3 M HNO3 was loaded onto a column: packed with U/TEVA© resin. The interference elements were rinsed by passing 3 M HNO3 through the column. The adsorbed uranium was eluted with 0.1 M HNO3. The eluate was directly introduced into a flow-electrolysis cell. The reduction current of U(VI) → U(V) was monitored and recorded. The uranium concentration was calculated from the relation between the peak current and the concentration of the standard uranium solution. The result of five repeated analyses for a standard solution containing 2.5 μg (0.1 mL at 25 μg mL-1) of uranium was found to be 2.5 ±0.025 μg (mean ±1σ). The detection limit calculated from 3-times the standard deviation of the background current was 56 ng. The analysis time required for one sample was within 5 min. The recoveries of uranium in actual nuclear waste reprocessing solutions were 92~112%.
AB - An on-line analysis system using a solid-phase extraction column coupled to electrochemical detection has been developed for the rapid determination of small amounts of uranium in liquid waste samples of spent nuclear-fuel reprocessing plants. A sample solution with a concentration of 3 M HNO3 was loaded onto a column: packed with U/TEVA© resin. The interference elements were rinsed by passing 3 M HNO3 through the column. The adsorbed uranium was eluted with 0.1 M HNO3. The eluate was directly introduced into a flow-electrolysis cell. The reduction current of U(VI) → U(V) was monitored and recorded. The uranium concentration was calculated from the relation between the peak current and the concentration of the standard uranium solution. The result of five repeated analyses for a standard solution containing 2.5 μg (0.1 mL at 25 μg mL-1) of uranium was found to be 2.5 ±0.025 μg (mean ±1σ). The detection limit calculated from 3-times the standard deviation of the background current was 56 ng. The analysis time required for one sample was within 5 min. The recoveries of uranium in actual nuclear waste reprocessing solutions were 92~112%.
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UR - http://www.scopus.com/inward/citedby.url?scp=72149132018&partnerID=8YFLogxK
U2 - 10.2116/bunsekikagaku.58.901
DO - 10.2116/bunsekikagaku.58.901
M3 - Article
AN - SCOPUS:72149132018
VL - 58
SP - 901
EP - 907
JO - Bunseki Kagaku
JF - Bunseki Kagaku
SN - 0525-1931
IS - 10
ER -