| Determination methods of manganese | Amount of manganese µkg | Manganese has been found | Deviation % | |
| µkg | % | |||
| Proposed method | 1 | 1.04 | 104 | +4.0 |
| 1.5 | 1.52 | 101.3 | +1.3 | |
| 3 | 3.05 | 101.7 | +1.7 | |
| 4 | 3.98 | 99.6 | −0.4 | |
| 5 | 4.95 | 99.0 | −1.0 | |
| 7 | 7.04 | 100.6 | +0.6 | |
| 10 | 10.05 | 100.5 | +0.5 | |
| Referenced method [4] | 2.5 | 2.78 | 111.2 | +11.2 |
| 3.0 | 3.20 | 106.7 | +6.7 | |
| 3.5 | 3.69 | 105.4 | +5.4 | |
| 4.0 | 3.72 | 93 | −7 | |
| 5.0 | 4.70 | 94 | −6 | |
| 7.0 | 7.35 | 105 | +5 | |
| 10.0 | 10.3 | 103 | +3 | |