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Table 7 Comparative overview on reported HPLC and proposed TLC methods

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

Ref. No LOD Elution time EHS score F-test
NPZ PHN NPZ PHN
[19] 1.29 µg mL−1 3.10 µg mL−1 ≈ 30 min 4.55 (acetonitrile) 3.90 (6.39)a 2.22 (6.39)a
This work 0.60 µg band−1 2.38 µg band−1 ≈ 6 min 2.89 (ethyl acetate)
2.66 (methanol)
  1. aThis value represents the corresponding tabulated value of F at p = 0.05