分别取40mL、30mL、20mL样品到50mL容量瓶中,各加入0.1mL内标,用分析纯丙酮定容至50mL。编号为80%、60%、40%。
用80%作单点校准。然后分别对80%、60%、40%重复测试3次。结果如下:
1 | 39.78 | 40.10 | 38.82 | 39.25 | 38.29 | SIM定量 |
2 | 39.02 | 39.41 | 38.42 | 38.87 | 37.08 |
3 | 39.16 | 39.72 | 38.37 | 38.97 | 38.08 |
平均值 | 39.32 | 39.74 | 38.54 | 39.03 | 37.82 |
理论值 | 40.00 | 40.00 | 40.00 | 40.00 | 40.00 |
RSD(%) | 1.02 | 0.88 | 0.65 | 0.49 | 1.72 |
相对偏差 | 1.70% | 0.64% | 3.66% | 2.42% | 5.45% |
1 | 273829 | 17882 | 17871 | 539452 | 7409 | 峰面积 |
2 | 263437 | 17231 | 17341 | 523984 | 7035 |
3 | 266375 | 17501 | 17453 | 529354 | 7281 |
平均值 | 267880 | 17538 | 17555 | 530930 | 7242 |
RSD(%) | 2.00 | 1.86 | 1.59 | 1.48 | 2.62 |
| | | | | | |
1 | 59.23 | 59.70 | 57.59 | 57.94 | 58.32 | SIM定量 |
2 | 53.02 | 55.64 | 56.68 | 58.63 | 59.08 |
3 | 58.46 | 59.48 | 56.62 | 57.78 | 57.79 |
平均值 | 56.90 | 58.28 | 56.96 | 58.12 | 58.40 |
理论值 | 60.00 | 60.00 | 60.00 | 60.00 | 60.00 |
RSD(%) | 5.95 | 3.92 | 0.96 | 0.78 | 1.12 |
相对偏差 | 5.16% | 2.87% | 5.06% | 3.14% | 2.67% |
1 | 415325 | 27113 | 27002 | 811180 | 11492 | 峰面积 |
2 | 325049 | 22096 | 23235 | 717775 | 10181 |
3 | 383321 | 25264 | 24826 | 756536 | 10650 |
平均值 | 374565 | 24824 | 25021 | 761830 | 10774 |
RSD(%) | 12.22 | 10.22 | 7.56 | 6.16 | 6.17 |
1 | 76.71 | 79.14 | 75.53 | 76.85 | 79.64 | SIM定量 |
2 | 76.35 | 78.92 | 75.28 | 76.16 | 75.95 |
3 | 74.81 | 78.01 | 74.28 | 76.23 | 76.01 |
平均值 | 75.96 | 78.69 | 75.03 | 76.41 | 77.20 |
理论值 | 80.00 | 80.00 | 80.00 | 80.00 | 80.00 |
RSD(%) | 1.33 | 0.76 | 0.88 | 0.50 | 2.74 |
相对偏差 | 5.05% | 1.64% | 6.21% | 4.48% | 3.50% |
1 | 507841 | 33932 | 33434 | 1015897 | 14818 | 峰面积 |
2 | 513093 | 34350 | 33827 | 1021919 | 14345 |
3 | 503050 | 33980 | 33401 | 1023503 | 14366 |
平均值 | 507995 | 34087 | 33554 | 1020440 | 14510 |
RSD(%) | 0.99 | 0.67 | 0.71 | 0.39 | 1.84 |
感觉结果跟理论值相差有点远。请各位指导。