- P-ISSN 2233-4203
- E-ISSN 2093-8950
- P-ISSN2233-4203
- E-ISSN2093-8950
- ESCI, SCOPUS, KCI
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Isotope Measurement of Uranium at Ultratrace Levels Using Multicollector Inductively Coupled Plasma Mass Spectrometry
Mass Spectrometry Letters / Mass Spectrometry Letters, (P)2233-4203; (E)2093-8950
2012, v.3 no.2, pp.54-57
https://doi.org/10.5478/MSL.2012.3.2.54
(Korea Atomic Energy Research Institute)
(Korea Atomic Energy Research Institute)
(Korea Atomic Energy Research Institute)
(Korea Atomic Energy Research Institute)
(Korea Atomic Energy Research Institute)
(Korea Atomic Energy Research Institute)
(Korea Atomic Energy Research Institute)
(Korea Atomic Energy Research Institute)
(Korea Atomic Energy Research Institute)
Oh,
S. Y., Lee,
S. A., Park,
J., Lee,
M., &
Song,
K.
(2012). Isotope Measurement of Uranium at Ultratrace Levels Using Multicollector Inductively Coupled Plasma Mass Spectrometry. Mass Spectrometry Letters, 3(2), 54-57, https://doi.org/10.5478/MSL.2012.3.2.54
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Abstract
Mass spectrometric analysis was carried out using multicollector inductively coupled plasma mass spectrometry(MC-ICP-MS) for the precise and accurate determination of the isotope ratios of ultratrace levels of uranium dissolved in 3%HNO3. We used the certified reference material (CRM) 112-A at a trace level of 100 pg/mL for the uranium isotopic measurement. Multiple collectors were utilized for the simultaneous measurement of uranium isotopes to reduce the signal uncertaintydue to variations in the ion beam intensity over time. Mass bias correction was applied to the measured U isotopes to improve theprecision and accuracy. Furthermore, elemental standard solution with certified values of platinum, iridium, gold, and thalliumdissolved in 3% HNO3 were analyzed to investigate the formation rates of the polyatomic ions of Ir40Ar+, Pt40Ar+, Tl40Ar+,Au40Ar+ for the concentration range of 50–400 pg/mL. Those polyatomic ions have mass-to-charge ratios in the 230–245 m/zregion that it would contribute to the increase of background intensity of uranium, thorium, plutonium, and americium isotopes. The effect of the polyatomic ion interference on uranium isotope measurement has been estimated.
- keywords
- ICP-MS, Multicollector, Isotope ratio, Uranium, Trace analysis
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- Submission Date
- 2012-05-23
- Revised Date
- 2012-06-20
- Accepted Date
- 2012-06-20
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