Determination of rare earth elements in tea by inductively coupled plasma mass spectrometry with microwave digestion(微波消解一电感耦合等离子体质谱法测定茶叶中的稀土元素)
应用微波消解，不经分离富集，用ICP-MS直接测定了9种茶叶中的15种痕量稀土元素.9种茶叶中轻稀土元素质量浓度较高，其质量浓度占被测稀土总质量浓度的80%以上.除陈香礼普和杭产绿茶稀土元素质量浓度相对较高外，其它茶叶品种间无明显的差异性.稀土元素的检出限均小于10 ng • L-1，各元素测定的RSD(n = 6)为1.85%~19.4%，样品加标回收率为97.1%~99.6%....
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Zhejiang University Press
2007-03-01
|
| Series: | Zhejiang Daxue xuebao. Lixue ban |
| Subjects: | |
| Online Access: | https://doi.org/zjup/1008-9497.2007.34.2.197-200 |