| Sample number |
Labeled
(mg) |
Proposed
method
(mg) |
Official
method
(mg) |
Added
(×10-6 mol l-1) |
Found
(×10-6 mol l-1) |
Average
recovery
(%, n = 5) |
R.S.D
(%, n = 5) |
| 1
2 |
100
100 |
99
97 |
98
96 |
2.00
5.00
2.00
5.00 |
2.06.
4.81.
1.93
5.21 |
103
96
97
104 |
2.3
2.2
2.6
2.5 |
|
