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

<div>UV spectra of BZ4 standard (1, 2) and shampoo sample (3, 4) collected directly from the chromatographic plate in the reflectance mode.</div>

Journal of Analytical Methods in Chemistry

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Figure 6

Figure 6: Quantification of Sunscreen Benzophenone-4 in Hair Shampoos by Hydrophilic Interactions Thin-Layer Chromatography/Densitometry or Derivative UV Spectrophotometry 

Figure 6 | Quantification of Sunscreen Benzophenone-4 in Hair Shampoos by Hydrophilic Interactions Thin-Layer Chromatography/Densitometry or Derivative UV Spectrophotometry 