大氣中放射性氙的分離純化系統研制
摘 要：為實現大氣中放射性氙的高效富集，利用制備色譜技術并結合吸附材料性能的差異，開展放射性氙分離純化技術的研究，通過研究結果確定分離純化系統的設計參數。實驗驗證氙分離純化系統的性能，系統全流程的時間小于1 h，獲得的氙樣品回收率大于90%，純度高于95%，能滿足放射性測量的要求。
關鍵詞：Xe；分離；純化；色譜技術
中圖分類號：X831；P401；O613.15；O658 文獻標志碼：A 文章編號：1674-5124（2013）05-0076-04
Separation and purification system of Xe in atmosphere
WANG Qian， ZHANG Li， HAO Fan-hua， LI Wei， PENG Shu-ming
（Institute of Nuclear Physics and Chemistry，CAEP，Mianyang 621900，China）
Abstract: In order to enrich radioactive xenon in the atmosphere high-efficiently， the authors researched the method for separating and purifying xenon by utilizing preparative chromatography technology and adsorption materials performance difference. The parameters of separation and purification system were determined after the research results were analyzed. The performance of the xenon separation and purification system was validated， the system of the whole flow is less than one hour， the xenon sample recovery is the better than 90%， and the purity is better than 95%. The xenon sample can meet the requirements of radioactivity measurement.
Key words: Xe； separation； purification； chromatography technology
