| 样品编号 | 标准浓度(mg/L) | 吸光度值(A) | 斜率(b) | 截距(a) | 相关系数(r) |
| QX1 | 0.000 | 0.023 | 2.635 | +0.009550 | 0.9994 |
| QX2 | 0.100 | 0.055 | |||
| QX3 | 0.150 | 0.075 | |||
| QX4 | 0.200 | 0.093 | |||
| QX5 | 0.250 | 0.115 | |||
| QX6 | 0.300 | 0.133 | |||
| QX7 | 0.400 | 0.173 | |||
| QX8 | 0.500 | 0.209 |