玉米粉中伏马毒素FB1基体标准物质的评价
牛欣宁,王步军

Evaluation of matrix reference material of Fumonisins FB1 in corn flour
Xin-Ning NIU,Bu-Jun WANG
表2 玉米粉中伏马毒素FB1短期稳定性检验结果
Table 2 Short-term stability test results of Fumonisins FB1 in corn flour (μg kg-1)
时间
Day (d)
测定值 Estimated value 平均值
Mean
样品1 Sample 1 样品2 Sample 2 样品3 Sample 3
0 1443.21 1527.20 1401.19 1457.20
1 1437.83 1505.11 1410.89 1451.28
4 1483.95 1512.63 1563.87 1520.15
7 1457.61 1471.37 1438.96 1455.98
14 1412.94 1400.17 1369.62 1394.24
斜率 b1 -4.79
斜率不确定度 s(b1) 3.64
临界值 t0.95, n-2×s(b1) 11.58
结论Conclusion 稳定Stabilization