我用的是PerkinElmer的200
下面把实验数据发上来:
测废水中铜含量
试样 , 平均值 , SD , RSD , 重复测定
空白 ,0.043 ,0.0040 , 9.4 , 0.042 0.047 0.039
标样1 ,0.029 ,0.0044 ,15.1 ,0.025 0.029 0.034
标样2 ,0.059 ,0.0034 ,5.7 , 0.061 0.055 0.059
标样3 ,0.111 , 0.0014 ,1.3 , 0.110 0.112 0.111
相关系数 :0.998536
试样1 ,0.053 ,0.0438 , 83.3 , 0.096 0.009 0.053
测铁含量时也类似,标样还凑合,但是到了测试样时
试样1 ,0.023 ,0.0547 ,241.5 ,0.063 0.044 -0.040
测锌就更夸张了,标准线都拉不出来,一会测一个值,RSD都在几百左右,试样的测量值更是有正有负
哪位大虾能帮忙详细指导一下,这仪器哪里出了问题?
我是新手,接触仪器不久,最好能说的详细点,谢谢了!