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Table 4 Precision data for the determination of adapalene applying the proposed approaches

From: Determination of adapalene in gel formulation by conventional and derivative synchronous fluorimetric approaches. Application to stability studies and in vitro diffusion test

Amount taken (ng/mL) % found % RSD % error
The first approach at 389 nm
 Intraday
  6.0 100.11 ± 0.85 0.85 0.49
  8.0 100.55 ± 0.37 0.37 0.21
  10.0 99.88 ± 0.17 0.17 0.10
 Interday
  6.0 101.05 ± 1.15 1.14 0.66
  8.0 99.93 ± 1.22 1.22 0.70
  10.0 99.85 ± 0.55 0.55 0.32
The second approach
 SDSF at 346 nm
  Intraday    
   6.0 99.67 ± 0.77 0.77 0.44
   8.0 99.50 ± 0.25 0.25 0.14
   10.0 100.02 ± 0.31 0.31 0.18
  Interday    
   6.0 100.04 ± 0.81 0.81 0.47
   8.0 99.02 ± 0.97 0.98 0.57
   10.0 98.28 ± 1.13 1.15 0.66
 FDSF at 312.45 nm    
  Intraday    
   6.0 99.20 ± 0.91 0.92 0.53
   8.0 100.08 ± 0.77 0.77 0.44
   10.0 99.31 ± 0.42 0.42 0.24
  Interday    
   6.0 101.19 ± 1.37 1.35 0.78
   8.0 99.74 ± 0.90 0.90 0.52
   10.0 98.11 ± 1.09 1.11 0.65