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Table 3 Physical and chemical properties of the eye drop suspension

From: Formulation, optimization, qualitative and quantitative analysis of new dosage form of corticosteroid

Parameters Specifications
Description White to off white, free of solid particles
pH 5.5 to 6.5
Specific gravity 1.000–1.002 g/mL
Viscosity 250–300 cps at 20 °C @ needle 1 at 300 rpm
Re-suspendability After 20 turns or less it is homogenized
Sedimentation volume The supernatant liquid is not more than 50.0%
Identification
Triamcinolone acetonide
The retention time of sample and standard should be same
Assay
Triamcinolone acetonide
90–110%