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1 2012

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High-performance thin-layer chromatographic analysis of psoralen in marketed formulations and manufactured solid lipid nanoparticles (SLNs): Validation of the method

Akhtar N., Faiyazuddin Md., Mustafa G., Sultana Y., Baboota S., Ali J.

Acta Chromatographica

2012

Vol. 24, no. 4

603--613

A quantitative method using precoated silica gel-60 Lichrosphere high-performance thin-layer chromatography (HPTLC) plates, automated band wise sample application, and n-hexane:acetone:formic acid (2:1:0.025 υ/υ/υ) as mobile phase, has been developed and validated for the analysis of psoralen in marketed formulations and novel solid lipid nanoparticles (SLNs). Densitometric analysis was performed at 250 nm in absorbance mode. Compact bands of psoralen were obtained at Rf 0.32 ± 0.02. The method was validated for linearity, precision, robustness, sensitivity, specificity, and recovery. Linearity (r2 = 0.995), limit of detection (8.0 ng band-1), limit of quantification (18.1 ng band) -1, recovery (98.06–99.64%), and precision (≤0.74) were satisfactory. Statistical analysis established that the developed method for quantification of psoralen in marketed formulation and from solid lipid nanoparticles is reproducible and selective.