Novel molecularly imprinted polymer prepared by nanoattapulgite as matrix for selective solid-phase extraction of diethylstilbestrol.
Using nanoattapulgite as matrix, both diethylstilbestrol surface molecularly imprinted polymer and non-imprinted polymer were synthesized in this work. Compared with each other, the diethylstilbestrol surface molecularly imprinted polymer is superior to non-imprinted polymer in adsorption capacity, selectivity and mass transfer property. The maximum static adsorption capacities of diethylstilbestrol surface molecularly imprinted polymer, non-imprinted polymer and nanoattapulgite for diethylstilbestrol was 105.14, 78.54 and 28.50 mg g(-1), respectively. As the packing material of solid-phase extraction, the diethylstilbestrol surface molecularly imprinted polymer has been applied to concentrating diethylstilbestrol in pond water and fish samples. A corresponding analytical method to determine diethylstilbestrol has been developed. The limit of detection for diethylstilbestrol in pond water sample and fish samples were 3 microg L(-1) and 15 microg kg(-1).
Zhao
Chuande
C
State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China.
Ji
Yongsheng
Y
Shao
Yongliang
Y
Jiang
Xiaoman
X
Zhang
Haixia
H
D000818:Animals; D004054:Diethylstilbestrol / Q000737:chemistry* / Q000302:isolation & purification*; D005399:Fishes; D054802:Molecular Imprinting; D011108:Polymers / Q000737:chemistry*; D052616:Solid Phase Extraction / Q000379:methods*
D011108:Polymers; D004054:Diethylstilbestrol