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Table 5 Statistical comparison between the results obtained by the proposed method and the official BP method

From: A green TLC densitometric method for the simultaneous detection and quantification of naphazoline HCl, pheniramine maleate along with three official impurities

Parameter TLC Official BP method [5]
NPZ PHN NPZ PHN
Mean of recoveries 101.15 100.42 99.63 99.71
SD 1.095 1.712 0.977 1.153
Variance 1.199 2.931 0.955 1.329
n 5 5 5 5
Student’s t-test 2.316 (2.306)a 0.778 (2.306)a NA NA
F-test 1.26 (6.39)a 2.21 (6.39)a NA NA
  1. aThese values represent the corresponding tabulated values of t and F at p = 0.05