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

<div>Analysis of residues for the linear (a) and no-linear (b) calibration plot, chromatographic method. Plot (a): a clearly visible trend. Plot (b): no particular trend.</div>

Journal of Analytical Methods in Chemistry

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Figure 7

Figure 7: Quantification of Sunscreen Benzophenone-4 in Hair Shampoos by Hydrophilic Interactions Thin-Layer Chromatography/Densitometry or Derivative UV Spectrophotometry 

Figure 7 | Quantification of Sunscreen Benzophenone-4 in Hair Shampoos by Hydrophilic Interactions Thin-Layer Chromatography/Densitometry or Derivative UV Spectrophotometry 