Quantification of Sunscreen Benzophenone-4 in Hair Shampoos by Hydrophilic Interactions Thin-Layer Chromatography/Densitometry or Derivative UV Spectrophotometry

<div>Multiwavelength scans for BZ4, silica gel 60, ethyl acetate-ethanol-water-pH 6 phosphate buffer 14 : 7 : 5 : 1 (v/v/v/v), scanning in reflectance mode.</div>

Journal of Analytical Methods in Chemistry

fig2

Figure 2

Figure 2: Quantification of Sunscreen Benzophenone-4 in Hair Shampoos by Hydrophilic Interactions Thin-Layer Chromatography/Densitometry or Derivative UV Spectrophotometry 

Figure 2 | Quantification of Sunscreen Benzophenone-4 in Hair Shampoos by Hydrophilic Interactions Thin-Layer Chromatography/Densitometry or Derivative UV Spectrophotometry 