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Table 4 Assay results for the determination of the studied drugs in pure form by the proposed and comparison methods

From: Green quality by design HPLC approach for the simultaneous determination of Bilastine and Montelukast

Compound

Proposed method

Comparison methods [17]

Amount taken (µg/mL)

Amount found (µg/mL)

% Found

% Found

BIL

1.0

1.00

100.29

101.30

3.0

2.97

99.09

98.70

15.0

14.89

99.30

100.43

20.0

20.01

100.06

 

30.0

30.22

100.74

50.0

49.89

99.79

Mean

99.88

100.14

 ± S.D

0.62

1.32

t-test

0.31 (2.31)*

F-test

4.53 (5.41)*

MNT (PDA detector)

3.0

2.96

2.96

99.06

7.0

6.86

6.89

100.94

15.0

14.96

14.96

99.69

30.0

30.09

30.09

 

40.0

40.65

40.62

50.0

49.44

49.48

Mean

99.59

99.90

 ± S.D

1.21

0.96

t-test

0.38 (2.31)*

F-test

1.49 (5.41)*

MNT (Fluorescence detector)

0.2

0.20

101.65

99.06

0.7

0.68

98.04

100.94

1.0

1.00

100.89

99.69

3.0

3.00

100.13

 

5.0

4.99

99.95

Mean

100.13

99.90

 ± S.D

1.35

0.96

t-test

0.34 (2.31)*

F-test

1.98 (9.01)*

  1. Each result is the average of three separate determinations
  2. *The figures between parentheses are the tabulated t and F values at P = 0.05 [29]