| 元素 | Cu | Zn | Co | Ni | Cr | Pb | Hg |
| Cu | 1 | −0.139 | 0.05 | 0.014 | 0.01 | −0.205 | −0.087 |
| Zn |
| 1 | 0.040 | 0.042 | −0.142 | 0.402** | 0.112 |
| Co |
|
| 1 | 0.972** | 0.121 | −0.345** | 0.322** |
| Ni |
|
|
| 1 | 0.105 | −0.390** | 0.329** |
| Cr |
|
|
|
| 1 | −0.080 | 0.228 |
| Pb |
|
|
|
|
| 1 | −0.026 |
| Hg |
|
|
|
|
|
| 1 |