NDLI: The relationship between the hydrophobic capacity and extraction efficiency of organic–inorganic hybrid mesoporous silicas for the determination of dibutyl phthalate by SPME

Content Provider	Springer Nature Link
Author	Rao, Honghong Wang, Xuemei Du, Xinzhen Xue, Zhonghua
Copyright Year	2013
Abstract	Three kinds of organofunctionalized mesoporous silicas, including methyl-MCM-41, propyl-MCM-41 and octyl-MCM-41, were synthesized via one-step co-condensation and for the first time employed as the coatings of solid-phase microextraction fibers coupled with HPLC to extract dibutyl phthalate (DBP). The samples were characterized by fourier transform infrared, small-angle X-ray diffractometer, transmission electron microscope, thermogravimetry analysis and N$_{2}$ adsorption–desorption. The results showed that the organofunctionalized mesoporous silicas still preserve a desirable two-dimensional P6mm hexagonal structure with large pore volume, good thermal stability and strong hydrophobicity after introducing alkyl groups of various carbon chains to the framework of MCM-41. When the concentration of DBP in standard solution is 1.0 × 10$^{−9}$ mol L$^{−1}$, the extraction efficiency of octyl-MCM-41, propyl-MCM-41 and methyl-MCM-41 is 5.7, 4.6 and 4.1 times higher than that of the pure MCM-41, respectively.
Starting Page	1231
Ending Page	1238
Page Count	8
File Format	PDF
ISSN	13802224
Journal	Journal of Porous Materials
Volume Number	20
Issue Number	5
e-ISSN	15734854
Language	English
Publisher	Springer US
Publisher Date	2013-04-30
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Organic–inorganic hybrid mesoporous silicas Fiber coatings Dibutyl phthalate SPME–HPLC Catalysis Characterization and Evaluation of Materials Physical Chemistry
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Materials Science Mechanical Engineering

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