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Process for synthesis of .sup.11 C-labeled methyl iodide and apparatus
Process for synthesis of .sup.11 C-labeled methyl iodide and apparatus
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机译:合成11 C-标记的甲基碘的方法和装置
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摘要
In a process for the synthesis of .sup.11 C-labeled methyl iodide which comprises producing .sup.11 CO.sub.2 by the irradiation of a proton beam, supplying .sup.11 CO.sub.2 gas to a collector of .sup.11 CO. sub.2 gas, bubbling .sup.11 CO.sub.2 gas into a reducing agent solution to reduce .sup.11 CO.sub.2, removing the reducing agent solution by evaporation, synthesizing .sup.11 CH.sub.3 I from the reduced product of . sup.11 CO.sub.2, and recovering .sup.11 CH.sub.3 I by distillation, the termination point of the .sup.11 CO.sub.2 gas supply, the termination point of the bubbling, the termination point of the evaporation of the reducing agent solution or the termination point of the distillatin of . sup.11 CH.sub.3 I is decided by a radiation sensor provided in the vicinity of the reaction vessel or a transfer tube connecting the target box wherein .sup.11 CO.sub.2 gas is generated or a temperature sensor provide in an exhaust tube of the reaction vessel. The synthesizing time is shortened, and the yield of .sup.11 CH.sub.3 I is improved by improving the utilization of .sup.11 CO.sub.2 gas and the recovery of . sup.11 CH.sub.3 I of which the half-life is very short.
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机译:在合成11 C标记的甲基碘的方法中,该方法包括通过质子束的照射产生11 CO 2,将11 CO 2气体提供给收集器将11号CO.sub.2气体中的11号CO.sub.2气体鼓泡到还原剂溶液中以还原11号CO.sub.2,通过蒸发除去还原剂溶液,进行合成。 sup.11 CH.sub.3 I来自的还原产物。 sup.11 CO.sub.2,并通过蒸馏回收11 CH.sub.3 I,sup.11 CO.sub.2供气的终点,鼓泡的终点,终点还原剂溶液的蒸发点或β-环糊精的蒸馏终点。 sup.11 CH.sub.3 I由设置在反应容器附近的辐射传感器或连接目标箱的传输管确定,在目标箱中会产生sup.11 CO.sub.2气体,或在其中提供温度传感器反应容器的排气管。通过提高11 CO 2的利用率和回收率,缩短了合成时间,提高了11 CH 3 I的收率。 sup.11 CH.sub.3 I,其半衰期很短。
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