摘要
以十八烷基三氯硅烷为偶联剂，采用分步合成法合成了烷基官能化的介孔分子筛C18-MCM-41，用元素分析、傅立叶红外光谱（FT—IR）、X射线衍射（XRD）对合成的复合材料进行表征，结果表明，有机官能化后材料仍保持介孔材料的结构特性。以该材料为固相微萃取涂层材料对水中的多环芳烃（萘、蒽、菲）进行了分析，方法的线性范围分别为5．0-250、0．4-300、0．5～400μg／L，检出限分别为5．0、0．10、0．25μg／L，加标回收率在94．3％～104．4％之间，分析结果令人满意，说明C18-MCM-41介孔材料可作为涂层材料用于固相微萃取。
With octadecyltrichlorosilane as coupling agent, organic-inorganic complex material C18-MCM- 41 was synthesized by two-step synthesis. The prepared C18-MCM-41 complex material was characterized by elemental analysis, XRD, FTIR and was used as the fiber coating for solid-phase microextraction （SPME） of polycyclic aromatic hydrocarbons （PAHs） in water. The experimental results show that C18-MCM-41 remains the structure of microporous material and can be used as the fiber coating for solid-phase microextraction. The C18-MCM-41 fiber coating SPME combined with high performance liquid chromatography （HPLC） was suceessfully applied to the analysis of PAHs in water.
出处
《分析科学学报》
CAS
CSCD
2008年第1期63-66,共4页
Journal of Analytical Science
