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Table 2 Application of the synchronous fluorimetry to the determination of the studied drugs in the pure form

From: Synchronous fluorescence spectrofluorimetric method for the simultaneous determination of metoprolol and felodipine in combined pharmaceutical preparation

Parameters

Concentration taken (μg/mL)

Concentration found (μg/mL)

% Found

Comparison method (4)

1-MTP

0.5

0.509

101.80

98.73

 

1.0

1.015

101.5

101.84

 

2.0

2.009

100.45

99.28

 

4.0

3.927

98.18

 
 

8.0

8.051

100.64

 
 

10.0

9.984

99.84

 

X

  

100.40

99.95

SD

  

± 1.3

± 1.66

t-test

 

0.45 (2.36)

  

F value

 

1.63 (5.79)

  

2-FDP

0.2

0.202

101.12

101.33

 

0.4

0.395

98.69

98.24

 

0.5

0.492

98.43

100.66

 

0.8

0.807

100.89

 
 

1.0

1.008

100.78

 
 

2.0

1.996

99.80

 

X

  

99.95

100.08

SD

  

± 1.17

± 1.63

t-test

 

0.13 (2.36)

  

F value

 

1.3 (5.79)

  
  1. Figures between parenthesis are the tabulated t (at degree of freedom = 7 for both drugs) and F values (at degree of freedom = 2, 5 for both drugs), respectively at p = 0.05 [11].