| 3 | 加标前 | 0.335 | 0.496 | 1.503 | 0.167 | 0.246 | 0.83 | 1.508 | 2.782 | 4.62 |
加标后 | 0.711 | 0.811 | 2.077 | 0.972 | 1.355 | 1.663 | 1.959 | 3.72 | 5.674 | ||
4 | 加标前 | 0.326 | 0.502 | 1.494 | 0.168 | 0.25 | 0.839 | 1.513 | 2.788 | 4.552 | |
加标后 | 0.709 | 0.805 | 2.101 | 0.978 | 1.342 | 1.665 | 1.997 | 3.676 | 5.652 | ||
5 | 加标前 | 0.33 | 0.499 | 1.472 | 0.167 | 0.249 | 0.831 | 1.51 | 2.83 | 4.586 | |
加标后 | 0.685 | 0.8 | 2.067 | 0.99 | 1.366 | 1.667 | 1.981 | 3.682 | 5.546 | ||
6 | 加标前 | 0.331 | 0.503 | 1.444 | 0.165 | 0.248 | 0.831 | 1.522 | 2.812 | 4.598 | |
加标后 | 0.703 | 0.802 | 2.036 | 1.001 | 1.362 | 1.643 | 1.967 | 3.678 | 5.512 | ||
平均值mg/L | 加标前 | 0.33 | 0.5 | 1.5 | 0.17 | 0.25 | 0.84 | 1.52 | 2.8 | 4.61 | |
加标后 | 0.7 | 0.81 | 2.08 | 0.99 | 1.36 | 1.66 | 1.97 | 3.7 | 5.6 | ||
检测加标量 | 0.0146 | 0.019 | 0.027 | 0.042 | 0.0695 | 0.043 | 4.25 | 8.2 | 10.58 | ||
目标加标量 | 0.015 | 0.02 | 0.026 | 0.04 | 0.07 | 0.045 | 4.20 | 8.0 | 11.0 | ||
加标回收率Pi (%) | 97.47 | 94.81 | 102.81 | 104.84 | 99.32 | 95.24 | 101.2 | 102.5 | 96.2 |