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

<div>Densitogram of BZ4 standard (1.8 <i>μ</i>g) and shampoo sample (1.5% BZ4).</div>

Journal of Analytical Methods in Chemistry

fig5

Figure 5

Figure 5: Quantification of Sunscreen Benzophenone-4 in Hair Shampoos by Hydrophilic Interactions Thin-Layer Chromatography/Densitometry or Derivative UV Spectrophotometry 

Figure 5 | Quantification of Sunscreen Benzophenone-4 in Hair Shampoos by Hydrophilic Interactions Thin-Layer Chromatography/Densitometry or Derivative UV Spectrophotometry 