提高热电离质谱灵敏度和防止放射性污染技术研究  

IMPROVEMENT SENSIBILITY AND PROTECTION RADIOACTIVITY CONTAMINATION TECHNIQUE FOR TIMS

作　　者：邓中国[1] 魏子章[1] 

机构地区：[1]中国原子能科学研究院放射化学研究所,北京102413

出　　处：《质谱学报》1999年第3期131-132,共2页Journal of Chinese Mass Spectrometry Society

摘　　要：There’s no disruption and falling of sample from the filament to contaminate for the mass spectrometer, environment and operator by electroplating some qualities of uranium or plutonium onto the single rhenium filament and overlaying a thin layer of platinum on this sample. The ion curren observed for the uranium or plutonium with sample size of 100ng or 50ng is 2 ×10-14A during the forty-sixty minutes.There's no disruption and falling of sample from the filament to contaminate for the mass spectrometer, environment and operator by electroplating some qualities of uranium or plutonium onto the single rhenium filament and overlaying a thin layer of platinum on this sample. The ion curren observed for the uranium or plutonium with sample size of 100ng or 50ng is 2 ×10^(-14)A during the forty-sixty minutes.

关 键 词：热电离质谱 同位素比值 铀 钚 超钚 镎 

分 类 号：O614.352[理学—无机化学] O614.62[理学—化学]