| 水样类型 | I | II | III | 总计 |
计数 | I | 5 | 0 | 0 | 5 |
II | 0 | 2 | 1 | 3 | |
III | 0 | 0 | 3 | 3 | |
准确率 (%) | I | 100 | 0 | 0 | 100.0 |
II | 0 | 66.67 | 33.33 | 100.0 | |
III | 0 | 0 | 100 | 100.0 |