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Updated: Jul 11, 2026
Automated 90Sr Separation and Preconcentration in a Lab-on-Valve System at Ppq Level
Published on: June 6, 2018
Development and application of an on-line sequential injection system for the separation of Pu, 210Po and 210Pb from
Chang-Kyu Kim1, Cheol-Su Kim, Umberto Sansone
1Physics, Chemistry and Instrumentation Laboratory, IAEA, Agency's Laboratories, Seibersdorf, A-1400 Vienna, Austria. c.k.kim@iaea.org
Abstract:
An on-line sequential injection (SI) system was developed, which can be widely used for the separation and pre-concentration of target analytes from diverse environmental samples. The system enables the separation time to be shortened by maintaining a constant flow rate of solution and by avoiding clogging or bubbling in a chromatographic column. The SI system was successfully applied to the separation of Pu in IAEA reference material (IAEA Soil-6) and to the sequential separation of 210Po and 210Pb in a phosphogypsum candidate reference material. The replicate analysis results of Pu in IAEA reference material (Soil-6) obtained with the SI system are in good agreement with the recommended value within 5% of standard deviation. The SI system enabled a halving in the separation time required for radionuclides investigated.
