| Analysis method | The sample analysis | ||||||
| a | b | r |
|
| s | RSD | |
|
|
|
| /(mg・L−1) | /(mg・L−1)
|
| /% | |
| Normal |
|
|
| 569.38 |
|
|
|
| Polarography |
|
|
| 495.60 |
|
|
|
| Analysis |
|
|
| 488.53 | 547.88 | 52.16 | 9.52 |
|
|
|
|
| 585.70 |
|
|
|
|
|
|
|
| 600.17 |
|
|
|
| Combine | −3.3334 × 10−5 | 0.54765 | 1 | 547.65 |
|
|
|
| Regression |
|
|
| 547.65 |
|
|
|
| Analysis |
|
|
| 547.65 | 547.65 | 0 | 0 |
|
|
|
|
| 547.65 |
|
|
|
|
|
|
|
| 547.65 |
|
|
|
/(mg・L−1)