氨氮曲线,线性很好,但是前面几个吸光度不在0.35-0.80,需要把前面几个点舍去吗,四个点会不会太少了?
浓度 | 0 | 0.2 | 0.4 | 0.8 | 1.6 | 2.4 | 3.2 | 4 |
吸光度 | 0.1 | 0.13 | 0.157 | 0.231 | 0.323 | 0.454 | 0.567 | 0.673 |
[img=,483,271]https://ng1.17img.cn/bbsfiles/images/2017/06/201706202138_01_3220770_3.jpg[/img]
[img=,493,290]https://ng1.17img.cn/bbsfiles/images/2017/06/201706202137_01_3220770_3.jpg[/img]