原料乳及乳制品中三聚氰胺检测方法验证报告
GB/T22388-2008(第一法)
李晓东
表1 三聚氰胺标准系列试验结果
C(μg/mL) | 0.5 | 1.0 | 5.0 | 10.0 | 25.0 | 50.0 | 100.0 |
A | 32622 | 45831 | 178263 | 374953 | 971711 | 1886106 | 3812576 |
编号 | m(g) | C(μg/ml) | V(ml) | X(mg/kg) | X平(mg/kg) | RSD(%) |
1 | 2.0231 | 11.609 | 1 | 28.69 | 28.85 | 0.33 |
2 | 2.0286 | 11.701 | 1 | 28.84 | ||
3 | 2.0304 | 11.747 | 1 | 28.93 | ||
4 | 2.0294 | 11.691 | 1 | 28.8 | ||
5 | 2.0300 | 11.745 | 1 | 28.93 | ||
6 | 2.0318 | 11.766 | 1 | 28.95 | ||
7 | 2.0272 | 11.677 | 1 | 28.85 |
测定编号 | 三聚氰胺 | ||||||
序号 | m(g) | V(mL) | C(μg/mL) | X(mg/kg) | X平(mg/kg) | 加标量() | 回收率% |
1# | 2.0211 | 1.0 | N.D | N.D | N.D | / | / |
2# | 2.0187 | 1.0 | N.D | N.D | / | / | |
加标1# | 2.0236 | 1.0 | 11.747 | 29.03 | / | 24.71 | 97.91 |
加标2# | 2.0224 | 1.0 | 20.491 | 50.66 | / | 49.45 | 102.45 |
加标3# | 2.0312 | 1.0 | 38.246 | 94.15 | / | 98.46 | 95.62 |