[1] Serp J, Allibert M, Beneš O et al. The molten salt reactor (MSR) in generation IV: overview and perspectives[J]. Progress in Nuclear Energy, 77, 308-319(2014).

[2] JIANG Mianheng, XU Hongjie, DAI Zhimin. Advanced fission energy program-TMSR nuclear energy system[C], 366-374(2012).

[6] Sengupta A, Thulasidas S K, Natarajan V. Trace level determination of precious metals in aqueous medium, U, Th and Zr based nuclear materials by ICP-AES and EDXRF: a comparative study[J]. Journal of Radioanalytical and Nuclear Chemistry, 303, 2421-2429(2015).

[7] Argekar A A, Kulkarni M J, Mathur J N et al. Chemical separation and ICP-AES determination of 22 metallic elements in U and Pu matrices using cyanex-923 extractant and studies on stripping of U and Pu[J]. Talanta, 56, 591-601(2002).

[8] FANG Qiying, HUANG Zongzhi, ZHOU Hongdi. The determination of trace amounts of rare earth elements in nuclear pure thorium dioxide by ultrasonic nebulizing ICP spectrometry[J]. Nuclear Techniques, 8, 76-77(1985).

[9] Winchester M R, Turk G C, Butler T A et al. Certification of beryllium mass fraction in SRM 1877 Beryllium Oxide Powder using high-performance inductively coupled plasma optical emission spectrometry with exact matching[J]. Analytical Chemistry, 81, 2208-2217(2009).

[10] Salit M L, Vocke R D, Kelly W R. An ICP-OES method with 0.2% expanded uncertainties for the characterization of LiA1O2[J]. Analytical Chemistry, 72, 3504-3511(2000).

[11] QIU Tingting, PENG Jia, HE Shuhua et al. Solubility of rare earth fluorides in nitric acid[J]. Nuclear Techniques, 38, 110304(2015).

[12] SONG Yulong, SUN Bin, ZUO Yong et al. A preparation device for liquid fuel in molten salt reactor and its preparation method[P].

[13] Barton C J, Friedman H A, Grimes W R et al. Phase equilibria in the alkali fluoride-uranium tetrafluoride fused salt systems: I, the systems LiF-UF4 and NaF-UF4[J]. Journal of the American Ceramic Society, 41, 63-69(1958).

[14] Thoma R E, Insley H, Landau B S et al. Phase equilibria in the fused salt systems LiF-ThF4 and NaF-ThF4[J]. The Journal of Physical Chemistry, 63, 1266-1274(1959).

[15] Langmuir D, Herman J S. The mobility of thorium in natural waters at low temperatures[J]. Geochimica et Cosmochimica Acta, 44, 1753-1766(1980).

[16] Nikolaev N S, Luk'yanychev Y A. The determination of the solubility product of thorium tetrafluoride[J]. The Soviet Journal of Atomic Energy, 12, 356-358(1962).