Optimization method for quantification of sunscreen organic ultraviolet filters in coastal sands

Most organic ultraviolet filters are very lipophilic and some of them difficult to quantify in the environment. This article describes an optimization method for quantification these compounds sand samples with diverse compositions. The standard additions was used. search a unique high-performance liquid chromatography analyze all along optimal detection conditions presented detail. best extraction solvent methanol, analysis involved use system equipped biphenyl column (2.6 ?m, 150 × 4.6 mm), Orbitrap MS detector. We also demonstrated that sample freeze-drying can induce significant loss filters.