摘要
采用一种脉冲增压微色谱柱 ,阴离子交换树脂 ,分离富集高纯石英中的微量铀 ,分离效果好 ,本底低。样品处理用低温密封闷罐酸溶。同位素稀释电感耦合等离子体质谱 (ID ICP MS)测定高纯石英中的微量铀 ,方法检出限低 :0 .1ng/ g (3σ ,n =10 ) ,分析速度快 。
A method called pulse-pressurized capillary column is used for preconcentration and separation of uranium, followed by determination of trace uranium in high purity quartz by ID-ICP-MS. Acid is used to dissolve the sample in an airproof vessel at a low temperature. The result of GSD-10 indicates that good precision and veracity can be achieved, and that the limit of determination is low (0.1 ng/g).Therefore,ID-ICP-MS is a good technique for determining trace element.
出处
《地球学报》
EI
CAS
CSCD
北大核心
2003年第6期627-630,共4页
Acta Geoscientica Sinica
