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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Qiao, Fengxia Yang, Chunliu Yan, Hongyuan Li, Zan Wang, Lu |
| Description | Country affiliation: China Author Affiliation: Wang L ( Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Department of Preventive Medicine and Health Management, Hebei University, Baoding, 071002, China.); Yan H ( Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Department of Preventive Medicine and Health Management, Hebei University, Baoding, 071002, China. Electronic address: yanhy@hbu.edu.cn.); Yang C ( Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Department of Preventive Medicine and Health Management, Hebei University, Baoding, 071002, China.); Li Z ( Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Department of Preventive Medicine and Health Management, Hebei University, Baoding, 071002, China.); Qiao F ( Department of Biochemistry, Baoding University, Baoding, 071002, China.) |
| Abstract | A mimic molecularly imprinted ordered mesoporous silica (MIOMS) adsorbent was prepared utilizing a thermally reversible semicovalent approach. The thermally reversible covalent template-monomer complex was firstly synthesized by employing 4,4'-sulfonyldiphenol (BPS) and (3-isocyanatopropyl) triethoxysilane (ICPTES) as template and monomer, respectively. The template-monomer complex was incorporated into ordered mesoporous silica via a simple self-assembly process. The adsorption experiment illustrated that the imprint-removed silica (MIOMS-ir) had higher special recognition ability (250µgg(-1)) for estradiol (E2) than the non-imprinted silica (NIOMS-ir) (25µgg(-1)). MIOMS-ir was applied as an adsorbent in pipette-tip solid-phase extraction (PT-SPE) coupled with liquid chromatography-fluorescence detector (LC-FLD) for determination of E2 in milk samples. Under the optimized conditions, only 3mg of the adsorbent, 0.3mL of water as washing solvent, and 0.5mL of acetonitrile-acetic acid (96:4, v/v) as elution solvent were used in the pretreatment procedure of milk samples. Good calibration linearity was obtained in a range of 25ngL(-1) to 1000ngL(-1), and the recoveries at three spiked levels were ranged from 95.4% to 107.0% with relative standard deviations (RSDs) ≤3.1% (n=3). The proposed MIOMS-ir-PT-SPE-LC-FLD method combined the advantages of PT-SPE and ordered mesoporous material such as ease assembly, low cost, high extraction efficiency and large specific surface area, so it is a potential pretreatment strategy for the extraction and determination of E2 in complex milk samples. |
| ISSN | 00219673 |
| Journal | Journal of Chromatography A |
| Volume Number | 1456 |
| e-ISSN | 18733778 |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2016-07-22 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Analytical Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Medicine Analytical Chemistry Biochemistry |
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