The invention provides a method and apparatus for preparation of radiochemicals wherein the reaction that couples the radioactive isotope to the reactive precursor to form a positron-emitting molecular imaging probe is performed in a microfluidic environment. The method comprises: providing a micro reactor; introducing a liquid reactive precursor dissolved in a polar aprotic solvent into an inlet port of the micro reactor, the reactive precursor adapted for reaction with a radioactive isotope to form a radiochemical; introducing a solution comprising a radioactive isotope dissolved in a polar aprotic solvent into another inlet port of the micro reactor; contacting the reactive precursor with the isotope-containing solution in a microchannel of the micro reactor; reacting the reactive precursor with the isotope-containing solution as the reactive precursor and isotope-containing solution flow through the microchannel of the micro reactor, wherein the reacting step is conducted at a temperature above the boiling point of the polar aprotic solvent at 1 atm and at a pressure sufficient to maintain the polar aprotic solvent in liquid form; and collecting the resulting radiochemical from the micro reactor.
该发明提供了一种用于制备放射
化学品的方法和装置,其中将将放射性同位素与反应前体耦合以形成正电子发射分子成像探针的反应在微流体环境中进行。该方法包括:提供微反应器;将溶解在极性无
水溶剂中的液态反应前体引入微反应器的入口端口,所述反应前体适用于与放射性同位素反应以形成放射
化学品;将包含放射性同位素的溶液溶解在极性无
水溶剂中的溶液引入微反应器的另一个入口端口;在微反应器的微通道中将反应前体与含同位素的溶液接触;当反应前体和含同位素的溶液通过微反应器的微通道流动时,将反应前体与含同位素的溶液反应,其中反应步骤在1大气压下的极性无
水溶剂的沸点以上的温度和足以维持极性无
水溶剂处于液态的压力下进行;并从微反应器中收集所得的放射
化学品。