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Optimization method for quantification of sunscreen organic ultraviolet filters in coastal sands
Author(s) -
Rodrigues Alice M. S.,
Lebaron Philippe,
Downs C. A.,
Stien Didier
Publication year - 2021
Publication title -
journal of separation science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.72
H-Index - 102
eISSN - 1615-9314
pISSN - 1615-9306
DOI - 10.1002/jssc.202100400
Subject(s) - ultraviolet , chromatography , methanol , extraction (chemistry) , biphenyl , solvent , chemistry , high performance liquid chromatography , ultraviolet radiation , materials science , optoelectronics , organic chemistry , radiochemistry
Most organic ultraviolet filters are very lipophilic and some of them are difficult to quantify in the environment. This article describes an optimization method for the quantification of these compounds in sand samples with diverse compositions. The standard additions method was used. The search for a unique high‐performance liquid chromatography method to analyze all these filters along with the search for optimal detection conditions are presented in detail. The best extraction solvent was methanol, and the best conditions for analysis and detection involved the use of a high‐performance liquid chromatography system equipped with a biphenyl column (2.6 μm, 150 × 4.6 mm), and an Orbitrap MS detector. We also demonstrated that sample freeze‐drying can induce significant loss of some of the ultraviolet filters.