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中国科学院上海原子核研究所
Received:28 August 1982,
Published:1983-06
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Yongjian Li, Dequn Shen, Fasheng Fan, et al. Production of Na 123I pharmaceutical by a dry process using natural antimony target[J]. Nuclear techniques, 1983, 06(3): 31-34,76.
用天然锑为靶材料,由氢氟酸体系电镀成均匀、牢固、导热性好的靶子,在适当的α粒子能量和靶子厚度下产生医用核纯度的
123
I,并首先应用一种高效、快速、简便的干法分离流程直接从轰击后的锑靶制备高纯放射性Na
123
I注射液,整个流程在1小时内完成。总的放射化学产率在98%以上,
123
I核素纯度大于98.5%(
124
I~0.95%;
126
I~0.18%),放化纯度(I
-
)大于98%,化学杂质Sb、Cu等均小于1ppm。厚靶产额0.30mCi/μA•h。此法制成的产品经过临床前药理试验、临床试用和有机放射性药物的合成,表明质量良好。
This paper describes a new process for the production of Na
123
I radiopharmaceutical through
121
Sb (α
2n)
123
I reaction. Target of natural antimony was electroplated in a HF bath on a silver-copper complex plate. The antinomy layer thus obtained was firmly bound and evenly distributed with definite thickness and good thermal conductivity. The targets were irradiated by α particles of ~ 30MeV to produce
123
I which transformed directly into pure Na
123
I radiopharmaceutical through a quick dry process of high efficiency. The total time of processing was within an hour. The overall radiochemical yield was over 98% with radionuclidic purity over 98.5%
radiochemical purity over 98%
chemical impurities of Cu and Sb all less than 1ppm. The thick target yield was around 0.3mCi/μAh. The product proved good in preclinical tests for injection
in-vivo uses and labelling of organic radiopharmaceuticals.
G. stöcklin , Int. J. Appl. Radiat. Isotopes , 28 , 131 ( 1977 ).
V. Murakami et al . , Radiopharmaceuticals and labelled compounds , vol.1 , IAEA , 1973 , p. 257 , 10 .
Ch. Deglume et al . , Int. J. Appl. Radiat. Isotopes , 24 , 191 ( 1973 ).
J. R. Dahl and R. S. Tilbury , ibid , 23 , 431 ( 1972 ).
孙祺薰 等 , 123 I-碘化钠的临床前药理 (待发表) .
樊法生 等 , 核技术 , 3 , 68 ( 1982 ).
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