样品编号 | 取样量,g | 定容体积 | 测定浓度,ug/L | 结果,mg/kg | 平均值,mg/kg | 精密度,% |
A | 0.2600 | 50 | 0.9896 | 0.1903 | 0.19 | 2.8 |
0.2657 | 50 | 1.0404 | 0.1958 | |||
A加标 | 0.2709 | 50 | 2.9709 | 0.5483 | 0.54 | 3.6 |
0.2684 | 50 | 2.8385 | 0.5288 | |||
B | 0.2568 | 100 | 1.812 | 0.7056 | 0.70 | 1.0 |
0.2542 | 100 | 1.775 | 0.6983 | |||
B加标 | 0.2594 | 100 | 2.7432 | 1.0575 | 1.0 | 3.1 |
0.2635 | 100 | 2.7022 | 1.025 |