Compound
Concentration
(µg/mL)
Accuracy
Precision
Recovery
Concentration found (mean ± SD) (µg/mL)
% Accuracy
(n=5)
Inter-day % (n=5)
Intra-day % (n=3)
(n=5)
%
Retinol
0.05
0.0561
87.8
4.40
3.18
98.0
0.2
0.207
96.4
3.05
0.5
0.501
99.8
2.46
2.93
93.6
1
0.933
93.3
4.14
2
1.98
99.1
11.6
5
5.14
97.2
5.89
6.58
82.3
10
9.76
97.6
12.0
G. Toc.
0.05
0.0464
92.9
5.77
9.19
107
0.2
0.205
97.5
8.99
0.5
0.0465
93.1
6.76
5.42
101
1
1.02
98.4
2.01
2
2.03
98.5
13.2
5
5.24
95.2
6.58
2.70
92.9
10
9.98
99.8
11.5
A. Toc.
0.2
0.212
94.0
9.00
0.5
0.513
97.5
13.1
6.41
101
1
0.919
91.9
5.46
2
1.86
92.8
9.58
5
5.19
96.2
9.63
4.72
96.1
10
9.76
97.6
4.31
Table 2:
Intra-day and inter-day precision and accuracy of retinol, gamma tocopherol (G. Toc.), and alpha tocopherol (A. Toc.) in human plasma.
