样品编号 | 取样体积mL | 定容体积mL | 铅测定浓度μg/L | 铅结果 μg/L | 平均值 μg/L | 精密度% | 取样体积mL | 定容体积mL | 铁测定浓度,mg/L | 铁结果mg/L | 平均值mg/L | 精密度% |
A | 2 | 10 | 22.1705 | 110.8525 | 107.8 | 5.7 | 1 | 10 | 0.3885 | 3.885 | 3.83 | 3.0 |
A | 2 | 10 | 20.9376 | 104.688 | 1 | 10 | 0.3770 | 3.770 | ||||
B | 2 | 25 | 19.4244 | 242.805 | 246.3 | 2.9 | 5 | 10 | 0.9039 | 1.8078 | 1.82 | 1.6 |
B | 2 | 25 | 19.9884 | 249.855 | 5 | 10 | 0.9182 | 1.8364 |