钙标液浓度,mg/mL | 0 | 0.500 | 1.00 | 2.00 | 4.00 | 6.00 |
吸光度 | 0.0049 | 0.0142 | 0.0247 | 0.0448 | 0.0843 | 0.1266 |
线性方程 | y=0.02025*x+0.0043 | |||||
相关系数 | R2=0.9998 |
编号 | ABS | 校正后浓度(mg/L) |
1# | 0.0073 | <0.036 |
2# | 0.0075 | <0.036 |
3# | 0.0072 | <0.036 |
4# | 0.0071 | <0.036 |
5# | 0.0071 | <0.036 |
6# | 0.0072 | <0.036 |
7# | 0.0072 | <0.036 |
RSD | 1.91% | 无法计算 |
编号 | ABS | 校正后浓度(mg/L) |
1# | 0.0341 | 1.8681 |
2# | 0.0338 | 1.8472 |
3# | 0.0342 | 1.8729 |
4# | 0.0337 | 1.8384 |
5# | 0.0333 | 1.8073 |
6# | 0.0334 | 1.8145 |
7# | 0.0337 | 1.8339 |
RSD | 0.98% | 1.3% |
编号 | ABS | 校正后浓度(mg/L) |
1# | 0.0622 | 3.8379 |
2# | 0.0621 | 3.8342 |
3# | 0.0616 | 3.8004 |
4# | 0.0618 | 3.8109 |
5# | 0.0618 | 3.8096 |
6# | 0.0611 | 3.7629 |
7# | 0.0606 | 3.7267 |
RSD | 0.92% | 1.0% |
编号 | ABS | 校正后浓度(mg/L) |
1# | 0.0061 | <0.036 |
2# | 0.0061 | <0.036 |
3# | 0.0061 | <0.036 |
4# | 0.0063 | <0.036 |
5# | 0.0063 | <0.036 |
6# | 0.0060 | <0.036 |
7# | 0.0064 | <0.036 |
RSD | 2.6% | 无法计算 |
样品 | 取样质量,mL | 校正后浓度mg/L | 加标量, mL | 校正后浓度mg/L | 样品含量,mg | 回收率,% |
酒样 | 10 | <0.036 | - | <0.036 | 0 | - |
10 | <0.036 | 0.15 | 0.6928 | 17.32 | 115.5 | |
10 | <0.036 | 0.6826 | 17.065 | 113.8 | ||
10 | <0.036 | 0.6432 | 16.08 | 107.2 | ||
10 | <0.036 | 0.30 | 1.3108 | 32.77 | 109.2 | |
10 | <0.036 | 1.2595 | 31.4875 | 105.0 | ||
10 | <0.036 | 1.2895 | 32.2375 | 107.5 | ||
10 | <0.036 | 0.50 | 2.1390 | 53.475 | 107.0 | |
10 | <0.036 | 2.0994 | 52.485 | 105.0 | ||
10 | <0.036 | 2.0863 | 52.1575 | 104.3 |
样品 | 称样质量,g | 定容体积,mL | 校正后浓度mg/L | 计算值,mg/kg | 标示值,mg/kg |
辽宁大米1# | 0.3443 | 25 | 1.5685 | 113.89 | 110.0±10.0 |
辽宁大米2# | 0.3501 | 25 | 1.5862 | 113.27 | |
辽宁大米3# | 0.3578 | 25 | 1.5903 | 111.12 | |
辽宁大米4# | 0.3526 | 25 | 1.5760 | 111.74 |