In stir bar sorptive extraction (SBSE), a coating is typically used to isolate and preconcentrate organic compounds in aqueous samples. Here, a translucent coating based on polydimethylsiloxane and aminopropyltriethoxysilane was prepared by a sol–gel method. Characterization tests showed that the coating was homogeneous, relatively polar, and both thermally (≤ 400°C) and chemically stable. Coated stir bars were evaluated in SBSE experiments. Benzene derivatives and furanic compounds were successfully extracted/preconcentrated from aqueous and organic solutions. Furanic compounds and benzene derivatives were moderately extracted from water, but they were sufficiently extracted from isooctane.

在搅拌棒吸附萃取（SBSE）中，通常使用涂层来分离和预浓缩水性样品中的有机化合物。在这里，通过溶胶-凝胶法制备了基于聚二甲基硅氧烷和氨基丙基三乙氧基硅烷的半透明涂层。表征测试表明，涂层是均匀的，相对极性的，并且在热（≤400°C）和化学上均稳定。在SBSE实验中评估了带涂层的搅拌棒。苯衍生物和呋喃化合物已成功地从水溶液和有机溶液中提取/预浓缩。呋喃化合物和苯衍生物从水中适度提取，但从异辛烷中充分提取。