Results The maximum difference of which the values measured by our laboratory related to the total average is 4.21%, and with an equipotent probability of positive and negative difference occurred.

• 结果我们实验室对两个样品的测量值相对于总体平均值的最大偏差为4.；21%25；而且；出现正负偏差的几率均等；说明我们实验室的测量方法的准确度和重复性非常好；没有明显的系统误差。