元素 | 线性回归方程 | 相关系数 |
111Cd | Y=5262.585*X+973.225 | R2=0.9999 |
次数 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
111Cd | 508.7 | 536.7 | 532.7 | 523.3 | 556.0 | 561.0 | 508.0 | 544.0 | 522.0 | 608.0 | 552.0 |
元素 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 平均值 | RSD% |
111Cd | 0.00281 | 0.00238 | 0.00236 | 0.00266 | 0.00276 | 0.00262 | 0.00277 | 0.00262 | 7.1 |
元素 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 平均值 | RSD% |
111Cd | 1.0379 | 1.0350 | 1.0130 | 1.0270 | 1.0315 | 1.0082 | 1.0068 | 1.0228 | 1.3 |
元素 | 分析人员 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 平均值 | RSD% |
111Cd | A | 0.00281 | 0.00238 | 0.00236 | 0.00266 | 0.00276 | 0.00262 | 0.00277 | 0.00262 | 8.5 |
B | 0.00310 | 0.00256 | 0.00250 | 0.00228 | 0.00241 | 0.00265 | 0.00278 |
样品重量g | 测试浓度,ppb | 定容体积mL | 计算值mg/kg | 含量μg | 加标量μg | 回收率% |
1.012 | 5.0839 | 50 | 0.2512 | 0.2542 | 平均值0.2524 | - |
1.005 | 5.0337 | 50 | 0.2504 | 0.2517 | ||
1.021 | 5.0203 | 50 | 0.2459 | 0.2510 | ||
1.015 | 5.0534 | 50 | 0.2489 | 0.2527 | ||
1.008 | 9.3391 | 50 | 0.4632 | 0.4670 | 0.20 | 107.3 |
1.020 | 9.2026 | 50 | 0.4511 | 0.4601 | 103.9 | |
1.014 | 9.2692 | 50 | 0.4571 | 0.4635 | 105.5 | |
1.011 | 9.3840 | 50 | 0.4641 | 0.4692 | 108.4 | |
1.016 | 13.2238 | 50 | 0.6508 | 0.6612 | 0.40 | 102.2 |
1.022 | 13.3516 | 50 | 0.6532 | 0.6676 | 103.8 | |
1.007 | 12.8913 | 50 | 0.6401 | 0.6446 | 98.0 | |
1.017 | 13.0080 | 50 | 0.6395 | 0.6504 | 99.5 | |
1.020 | 16.9668 | 50 | 0.8317 | 0.8483 | 0.60 | 99.3 |
1.016 | 16.7244 | 50 | 0.8231 | 0.8362 | 97.3 | |
1.011 | 16.8959 | 50 | 0.8356 | 0.8448 | 98.7 | |
1.015 | 16.7701 | 50 | 0.8261 | 0.8385 | 97.7 |