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| Type |
Poster Presentation |
| Area |
Analytical Chemistry |
| Room No. |
Exhibition Hall 2 |
| Time |
4월 19일 (금요일) 11:00~12:30 |
| Code |
ANAL.P-260 |
| Subject |
Microextractoin chromatography for determination of a mixture of 90Sr and 90Zr |
| Authors |
Jihye Kim
Chemical Research Division, Korea Atomic Energy Research Institute, Korea |
| Abstract |
We introduce a method to determine 90Sr and 90Zr using microextraction chromatography system with a column containing Eichrom Sr ResinTM. Due to the stable isobaric interference of 90Zr by ICP-MS, the measurement of 90Sr was difficult. We propose that the method is to separate prior to ICP-MS using microextraction chromatography besides the low volumes inherent to ICP-MS allow for decreasing radioactive wastes production.
In our system, the volume of sample injection into the extraction column is 270 ㎕. Zirconium is passed through the column using 3 M HNO3 while strontium is retained on the column. Then the strontium is eluted with 1% acetic acid. Total flow rate is about 100 ㎕/min. After extraction, the quantitation is achieved by ICP-MS. The recoveries are 91.0% ± 0.7% and 96.1% ± 0.9% for strontium and zirconium, respectably.
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| E-mail |
jhk1761@hotmail.com |
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123rd General Meeting of the KCS