| abstract |
Disclosed is a method for quantitatively analyzing a cosmetic sample for titanium dioxide (TiO 2 ) and zinc oxide (ZnO) which are included as inorganic components in sunscreens, and more specifically, a method for accurately and quantitatively testing a cosmetic sample for titanium dioxide and zinc oxide using X-ray fluorescence (XRF) analysis and compensating for complicated matrix influences such as interaction between titanium dioxide, zinc oxide, and other inorganic materials. The quick quantitative analysis for titanium dioxide and zinc oxide using the simple pretreatment method ensures safety for testers. In addition to titanium dioxide and zinc oxide, the method enables the simultaneous detection of various harmful elements which should not be included in cosmetics, such as lead, arsenic, and mercury. Therefore, this quantitative analysis can be effectively used as a quality evaluation method for improving products. |