GBW07605-生物成分分析-茶叶成分分析标准物质
【保存条件】干燥、阴凉处。
【使用注意事项】用后闭紧瓶盖放入干燥器内于阴凉处保存。最小取样量为0.5克。
【特征形态】固态
【基体】茶叶
【主要分析方法】X-射线荧光法、比色法、称量法等多种方法
| 组分 | 标准值 | 标准偏差 | 单位 |
| As | 0.28 | 0.04 | (10-6) |
| Ba | 58 | 6 | (10-6) |
| Cd | 0.057 | 0.010 | (10-6) |
| Ce | 1.0 | 0.2 | (10-6) |
| Cu | 17.3 | 1.8 | (10-6) |
| Fe | 264 | 15 | (10-6) |
| La | 0.60 | 0.04 | (10-6) |
| Mn | 1240 | 70 | (10-6) |
| Na | 44 | 6 | (10-6) |
| Ni | 4.6 | 0.5 | (10-6) |
| Pb | 4.4 | 0.3 | (10-6) |
| Rb | 74 | 5 | (10-6) |
| Sb | 0.056 | 0.006 | (10-6) |
| Se | (0.072) | (10-6) | |
| Sr | 15.2 | 0.7 | (10-6) |
| Th | 0.061 | 0.009 | (10-6) |
| Zn | 26.3 | 2.0 | (10-6) |
| Ca* | 0.43 | 0.04 | (10-6) |
| Mg* | 0.17 | 0.02 | (10-6) |
| K* | 1.66 | 0.12 | (10-6) |
| N* | 3.32 | 0.09 | (10-6) |
| S* | 0.245 | 0.022 | (10-6) |
| Br | 3.4 | 0.5 | (10-6) |
| Co | 0.18 | 0.02 | (10-6) |
| Cr | 0.80 | 0.03 | (10-6) |
| Cs | 0.29 | 0.02 | (10-6) |
| Sc | 0.085 | 0.013 | (10-6) |
| Hg | (0.013) | (10-6) | |
| Sm | 0.085 | 0.023 | (10-6) |
| Ti | 24 | 4 | (10-6) |
