Liao, Fang-Yi; Su, Yu-Lin; Weng, Jing-Ru; Lin, Ying-Chi; Feng, Chia-Hsien published an article in 2020, the title of the article was Ultrasound-vortex-assisted dispersive liquid-liquid microextraction combined with high performance liquid chromatography-diode array detection for determining UV filters in cosmetics and the human stratum corneum.Computed Properties of 6197-30-4 And the article contains the following content:
This study explores the amounts of common chem. UV filters (i.e., avobenzone, bemotrizinol, ethylhexyl triazone, octocrylene, and octyl methoxycinnamate) in cosmetics and the human stratum corneum. An ultrasound-vortex-assisted dispersive liquid-liquid microextraction (US-VA-DLLME) method with a high-performance liquid chromatog.-diode array detector was used to analyze UV filters. A bio-derived solvent (i.e., anisole) was used as the extractant in the US-VA-DLLME procedure, along with methanol as the dispersant, a vortexing time of 4 min, and ultrasonication for 3 min. The mass-transfer rate of the extraction process was enhanced due to vortex-ultrasound combination. Various C18 end-capped columns were used to investigate the separation characteristics of the UV filters, with XBridge BEH or CORTECS selected as the separation column. Calibration curves were constructed in the 0.05-5μg/mL (all filters except octocrylene) and 0.1-10μg/mL (octocrylene) ranges, and excellent anal. linearities with coefficients of determination (r2) above 0.998. The developed method was successfully used to analyze sunscreen. Moreover, experiments were designed to simulate the sunscreen-usage habits of consumers, and the cup method was used to extract UV filters from the human stratum corneum. The results suggest that a makeup remover should be employed to remove water-in-oil sunscreens from skin. The experimental process involved the reaction of 2-Ethylhexyl 2-cyano-3,3-diphenylacrylate(cas: 6197-30-4).Computed Properties of 6197-30-4
The Article related to ultrasound vortex assisted dispersive liquid microextraction uv filter hplc, uv filters, bio-derived solvent, cup method, human stratum corneum, ultrasound–vortex-assisted dispersive liquid–liquid microextraction and other aspects.Computed Properties of 6197-30-4
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