Table 2 Assay results of MET, EMP, and LIN in their pharmaceutical tablets using the proposed MEKC method

MET/EMP/LIN (Mixture I)^a

Mean % recovery ± SD

RSD %

E_{r %}

t ^e

F ^e

100.27 ± 0.16

0.16

0.27

1.71

1.12

99.84 ± 0.68

0.68

−0.16

0.53

3.04

100.44 ± 0.71

0.71

0.44

2.22

3.91

99.96 ± 0.025

0.025

−0.04

99.65 ± 0.39

0.39

−0.35

99.65 ± 0.36

0.36

−0.35

MET/EMP (Mixture II)^b

Mean % recovery ± SD

RSD %

E_{r %}

t ^e

F ^e

100.04 ± 0.59

0.59

0.04

0.80

5.15

99.60 ± 0.68

0.68

−0.40

2.10

4.00

99.81 ± 0.26

0.26

−0.19

98.88 ± 0.34

0.34

−1.12

MET/LIN (Mixture III)^c

Mean % recovery ± SD

RSD %

E_{r %}

t ^e

F ^e

100.52 ± 1.50

1.49

0.52

0.12

5.01

100.46 ± 1.96

1.95

0.46

0.07

1.85

100.17 ± 0.67

0.67

0.17

100.54 ± 1.44

1.43

0.54

EMP/LIN (Mixture IV)^d

Mean % recovery ± SD

RSD %

E_{r %}

t ^e

F ^e

99.84 ± 0.80

0.80

−0.16

2.24

1.91

101.10 ± 0.75

0.74

1.10

2.15

3.16

100.83 ± 0.58

0.57

0.83

100.28 ± 0.42

0.42

0.28