کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1211958 1494037 2016 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Preparation of selective magnetic dispersive solid-phase sorbent and its application for recognition clenbuterol from bovine urine
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Preparation of selective magnetic dispersive solid-phase sorbent and its application for recognition clenbuterol from bovine urine
چکیده انگلیسی


• A new kind of selective magnetic dispersive solid-phase sorbent was synthesized.
• The spherical and porous sorbent shows special recognition and rapid dynamic equilibrium.
• Magnetic property of MHIM made the sorbent easy to remove from sample matrix.
• dSPE coupled with magnetic separation for rapid extraction of CLB in bovine urine.
• Mimic template method eliminate the effect of template leak on quantitative analysis.

A new kind of selective magnetic dispersive solid-phase sorbent based on multiple Fe3O4 nanospheres as the core structure and molecular imprinted material as the shell structure was synthesized with tert-butylamine and 2-chloroaniline as the templates. The obtained multicore–shell-structured sorbent was spherical (diameter distribution 25–90 μm) with porous morphologies, thus incorporating strong magnetic properties and specific molecular recognition coupled with rapid adsorption and dynamic equilibrium. The sorbent was applied for rapid and selective screening of clenbuterol (CLB) in bovine urine samples. Good linearity was obtained in the range 1.25–200 ng mL−1 with the average recovery at three spiked levels ranging from 91.4% to 105.3%. The proposed method significantly improved the purification and extraction efficiency of CLB in urine samples and eliminated the effect of template leakage during quantitative analysis.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography B - Volumes 1017–1018, 1 April 2016, Pages 18–27
نویسندگان
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