|
【保存条件】 干燥阴凉(或空调)洁净室里
【使用注意事项】最小取样量为250毫克,使用前样品在85℃烘干4小时
【特征形态】固态
【基体】茶树叶
【主要分析方法】原子吸收法,中子活化法,等离子体发射光谱法
| 组分 |
标准值 |
标准偏差 |
单位 |
| As |
0.180 |
0.049 |
(10-6) |
| Ba |
120 |
10 |
(10-6) |
| Ca |
0.800 |
0.066 |
(10-2) |
| Cd |
0.023 |
0.004 |
(10-6) |
| Ce |
1.58 |
0.18 |
(10-6) |
| Cu |
8.96 |
0.59 |
(10-6) |
| Fe |
347 |
12 |
(10-6) |
| K |
0.863 |
0.063 |
(10-2) |
| La |
1.12 |
0.10 |
(10-6) |
| Mg |
0.276 |
0.025 |
(10-2) |
| Mn |
0.217 |
0.011 |
(10-2) |
| N |
2.89 |
0.13 |
(10-2) |
| Na |
139 |
19 |
(10-6) |
| Ni |
5.09 |
0.76 |
(10-6) |
| P |
0.148 |
0.008 |
(10-2) |
| Pb |
1.00 |
0.05 |
(10-6) |
| RB |
16.2 |
0.7 |
(10-6) |
| S |
0.222 |
0.025 |
(10-2) |
| Sb |
0.036 |
0.006 |
(10-6) |
| Se |
0.040 |
0.007 |
(10-6) |
| Sr |
52.4 |
5.6 |
(10-6) |
| Th |
0.104 |
0.014 |
(10-6) |
| Zn |
22.6 |
1.5 |
(10-6) |
| Br |
(2) |
|
(10-6) |
| Co |
(0.18) |
|
(10-6) |
| Cs |
(0.1) |
|
(10-6) |
| Cr |
(2) |
|
(10-6) |
| Hg |
(0.017) |
|
(10-6) |
| Sc |
(0.18) |
|
(10-6) |
| Sm |
(0.18) |
|
(10-6) |
| Ti |
(37) |
|
(10-6) |
|