Table 3. Inter-day and inter-day precision of vitamin B
12
Precision
Recovery (%)
SD
RSD (%)
Intra-day precision
103.72
5.51
5.31
98.96
5.08
5.13
93.61
3.94
4.21
84.69
0.83
0.98
Inter-day precision
106.57
2.53
2.37
95.02
2.05
2.16
89.59
3.49
3.90
83.41
2.01
2.40
All values are meanĀ±SD of three replicates.
RSD, relative standard deviation.