饮料中乙酰磺氨酸钾检测方法验证报告
GB/T5009.140-2003
李晓东
X(mg/L)= | c× V×1000×f |
m×1000 |
表1 乙酰磺酸钾标准系列试验结果
C(μg/mL) | 0.05 | 0.1 | 0.5 | 1.0 | 5.0 | 10.0 | 25.0 | 50.0 |
A | 1292 | 2886 | 16454 | 50563 | 181428 | 307900 | 845643 | 1704096 |
编号 | m(ml) | C(μg/ml) | V(ml) | X(mg/L) | X平(mg/L) | RSD(%) |
1 | 2.5 | 1.857 | 25 | 18.57 | 18.67 | 0.35 |
2 | 2.5 | 1.866 | 25 | 18.66 | ||
3 | 2.5 | 1.876 | 25 | 18.76 | ||
4 | 2.5 | 1.865 | 25 | 18.65 | ||
5 | 2.5 | 1.874 | 25 | 18.74 | ||
6 | 2.5 | 1.865 | 25 | 18.65 | ||
7 | 2.5 | 1.863 | 25 | 18.63 |
测定编号 | 乙酰磺酸钾 | ||||||
序号 | m(g) | V(mL) | C(μg/mL) | X(mg/L) | X平(mg/L) | 加标量(mg/L) | 回收率% |
1# | 2.5 | 25 | N.D | N.D | N.D | / | / |
2# | 2.5 | 25 | N.D | N.D | / | / | |
加标1# | 2.5 | 25 | 1.863 | 18.63 | / | 20 | 93.2 |
加标2# | 2.5 | 25 | 3.561 | 35.61 | / | 40 | 89.0 |
加标3# | 2.5 | 25 | 6.978 | 69.78 | / | 80 | 87.2 |