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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].