摘要
自行设计和研制了国内唯一的一套溅射原子化激光共振电离－飞行时间质谱仪，并增设了微米级液态金属镓离子源、框架式压电陶瓷亚微米级微动样品台、二次电子成象和离子束自动定点打靶以及真彩色大屏幕图像显示等系统。利用该谱仪探测了地矿样品中的金和钢标样中的铜，其检出限分别达４０ｎｇ／ｇ和μｇ／ｇ量级。同时，还对其他相关领域进行了初步研究。
The only one set of Sputter Initiated Resonance Ionization Time of Flight Mass Spectrometer (SIRI TOFMS) in China was designed and developed.A liquid gallium ion source with micron level diameter of beam,frame style piezoeletric ceramic sub micron sample manipulator,a secondary electron imaging system and a computer controlled precise targeting system as well as a real colour big screen image displaying system were added so as to improve its microanalysis capability.By means of this apparatus,trace analysis of Au in minerals and Cu in standard steel samples were carried out.The detection limit of them is 40ng/g and μg/g level,respectively.Aside from the above detections,other preliminary researches were also performed.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
1997年第1期102-107,112,共7页
Spectroscopy and Spectral Analysis
基金
国家"七五"(75-56-VI2)
"八五"(85-901-05-03)重点科技攻关
