LIANG Bang-hong, ZHANG Jin-song, LI Bing, YANG Bin, LI Yi-cai, SUN Peng, LIU Zhi, CHEN Yun-ming. Determination of Molybdenum Isotope Ratios in Fission Products of Nuclear Fuel by Negative Thermal Ionization Mass Spectrometry[J]. Journal of Chinese Mass Spectrometry Society, 2016, 37(2): 134-139. DOI: 10.7538/zpxb.youxian.2016.0003
Citation: LIANG Bang-hong, ZHANG Jin-song, LI Bing, YANG Bin, LI Yi-cai, SUN Peng, LIU Zhi, CHEN Yun-ming. Determination of Molybdenum Isotope Ratios in Fission Products of Nuclear Fuel by Negative Thermal Ionization Mass Spectrometry[J]. Journal of Chinese Mass Spectrometry Society, 2016, 37(2): 134-139. DOI: 10.7538/zpxb.youxian.2016.0003

Determination of Molybdenum Isotope Ratios in Fission Products of Nuclear Fuel by Negative Thermal Ionization Mass Spectrometry

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  • Molybdenum isotopes of 95Mo,97Mo, 98Mo and 100Mo are the important fission products in nuclear fuel. In order to determine the molybdenum isotope ratios of irradiated nuclear fuel element, MoO3- was detected by negative thermal ionization mass spectrometry (NTIMS) using SrCl2 as an emitter. As a result, 0.1 μg Mo sample loaded onto single rhenium filament can obtain stable ion beam for about 2 h, and relative standard deviation (RSD) of molybdenum isotope ratio determination was less than 0.5‰. 7 molybdenum isotopes were measured using 5 Faraday cups with 1 peak jumping. The m/z 143 signal was collected before and after the peak jumping, respectively, and selected as the denominator of isotope ratio, which avoided the signal fluctuation error. Background level of natural molybdenum was evaluated, which indicated that background of rhenium filaments and reagents can be ignored in the process of mass spectrometry determination. Oxygen isotope interference in MoO3- ions was deducted by means of solving matrix equation group. The determination results of ruthenium, molybdenum and zirconium mixed samples show that the method can reduce the isobaric interferences of zirconium and ruthenium. The natural molybdenum interference in spent fuel element was deducted by data correction, and the molybdenum isotope ratios of fission product were obtained.
  • [1]
    张春华. 核燃料燃耗的质谱测定[J]. 核动力工程,1987,6(8):49-56.ZHANG Chunhua. Mass spectrometry determination of nuclear fuel burn up[J]. Nuclear Power Engineering, 1987, 6 (8): 49-56(in Chinese).
    [2]
    李桃生,方栋. 核燃料的燃耗测量方法综述[J]. 核电子学与探测技术,2005,25(6):852-857.LI Taosheng, FANG Dong. Introduction to burn-up measurement method of nuclear fuel[J]. Nuclear Electronics & Detection Technology, 2005, 25 (6): 852-857(in Chinese).
    [3]
    ANBAR A D, KNAB K A, BARLING J. Precise determination of mass-dependent variations in the isotopic composition of molybdenum using MC-ICP-MS[J].Anal Chem, 2001, 73(7):1425-1431.
    [4]
    朱建明,朱祥坤,黄方. 钼的稳定同位素体系及其地质应用[J]. 岩石矿物学,2008,27(4):353-360.ZHU Jianming, ZHU Xiangkun, HUANG Fang. The systematics of molybdenum stable isotope and its application to earth science[J]. Acta Petrologica Et Mineralogica, 2008, 27(4): 353-360(in Chinese).
    [5]
    李津,朱祥坤,唐索寒. 钼同位素分析方法初探[J]. 矿物学报,2009,29(S1):614-616.LI Jin, ZHU Xiangkun, TANG Suohan. Preliminary study on molybdenum isotope analysis[J]. Acta Mineralogica Sinica, 2009, 29(S1): 614-616(in Chinese).
    [6]
    李津,朱祥坤,唐索寒. 钼同位素的MC-ICP-MS测定方法研究[J]. 地球学报,2010,31(2):251-257.LI Jin, ZHU Xiangkun, TANG Suohan. High-precision measurements of Mo isotopes using MC-ICP-MS[J]. Acta Geoscientia Sinica, 2010, 31(2): 251-257(in Chinese).
    [7]
    AUPHAS N, REISBERG L, MARTY B. Solvent extraction, ion chromatography, and mass spectrometry of molybdenum isotopes[J]. Anal Chem, 2001,73(11): 2613-2616.
    [8]
    MOUREAU J, GRANET M, CHARTIER F, et al. High accuracy measurements of Mo isotopes by MC-ICP-MS with in situ Mo/Zr separation using N2O in a collision reaction cell[J]. J Anal Atom Spectrom, 2008, 23(11): 1538-1544.
    [9]
    林久之. 钕和钼同位素丰度比的精密测定[J]. 核动力工程,1980,1(4):56-60.LIN Jiuzhi. Precise determination of neodymium and molybdenum isotope ratios[J].Nuclear Power Engineering, 1980, 1(4): 56-60(in Chinese).
    [10]
    LU Q, MASUDA A. High accuracy measurement of isotope ratios of molybdenum in some terrestrial molybdenites[J]. Am Soc Mass Spectrom, 1992, 3(1): 10-17.
    [11]
    TURNLUND J R, KEYES W R, PEIFFER G L. Isotope ratios of molybdenum determined by thermal ionization mass spectrometry for stable isotope studies of molybdenum metabolism in humans[J]. Anal Chem, 1993, 65(13):1717-1722.
    [12]
    WIESER M E, de LAETER J R. Thermal ionization mass spectrometry of molybdenum isotopes[J]. Int J Mass Spectrom, 2000, 197(2): 253-261.
    [13]
    WIESER M E, de LAETER J R. Molybdenum isotope mass fractionation in iron meteorites[J]. Int J Mass Spectrom, 2009, 286(2/3): 98-103.
    [14]
    GIUSSANI A, HANSEN C, NUSSLIN F, et al. Application of thermal ionization mass spectrometry to investigations of molybdenum absorption in humans[J]. Int J Mass Spectrom, 1995, 148(95): 171-178.
    [15]
    WIESER M E, de LAETER J R., VARNER M D. Isotope fractionation studies of molybdenum[J]. Int J Mass Spectrom, 2007, 265(1): 40-48.
    [16]
    邓辉,梁帮宏,张舸,等. 钼同位素丰度的负热电离质谱测量方法研究[C]. 中国质谱学会无机质谱、同位素质谱、质谱仪器和教育学专业委员会学术交流会论文集,2007:30-31.
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