Determinação de arsênio em batom de coloração nude

Abstract

The increasing use of cosmetics, especially lipsticks, raises concerns about the presence of toxic elements in their formulations, such as arsenic (As), a toxic metalloid with carcinogenic potential. Although its presence is not intentional, contamination may occur through raw materials, particularly mineral-based pigments. This study aimed to identify and quantify the arsenic content in five samples of nude-colored lipsticks commercialized in Brazil, using the molecular absorption spectrophotometry technique with silver diethyldithiocarbamate. The analyses were performed in duplicate, following dry mineralization, arsenic extraction, and formation of the arsenic diethyldithiocarbamate complex, with absorbance reading at 540 nm. The results showed arsenic concentrations ranging from 0.198 to 0.929 µg/g, with all samples remaining within the maximum permissible limit by brazilian legislation, of 3,0 µg/g, being considered appropriate for use.