Table 2: Evaluation of intraday and interday accuracy and precision.

MethodINH
Taken
(µg mL−1)
Intraday accuracy and precision ( )Interday accuracy and precision ( )
INH
Founda
(µg mL−1)
RSDb
%
REc
%
INH
found
(µg mL−1)
RSDb
%
REc
%

A3.02.961.240.893.072.342.12
6.06.111.841.036.122.002.53
9.09.141.561.529.151.672.00

B1.01.011.021.921.033.001.85
1.51.472.011.151.542.671.27
2.02.041.921.472.052.501.62

Mean value of 7 determinations; brelative standard deviation (%); crelative error (%).