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A strategy of utilizing Zn(II) as metallic pivot in room temperature ionic liquid to prepare molecularly imprinted polymers for compound with intramolecular hydrogen bonds
Sun, YK (Sun, Ya Kun); Jia, M (Jia, Man); Yang, J (Yang, Jian); Huang, YP (Huang, Yan-Ping); Liu, ZS (Liu, Zhao-Sheng); Aisa, HA (Aisa, Haji Akber)
2018
Source PublicationANALYTICAL AND BIOANALYTICAL CHEMISTRY
ISSN1618-2642
Volume410Issue:2Pages:349-359
Abstract

A method of preparing molecularly imprinted polymers (MIPs) with Zn(II) as a metallic pivot was adopted to solve the problem of imprinting compound with intramolecular hydrogen bonds by forming stronger coordination binding interaction among the template-functional monomer-Zn2+ complex. A ternary porogenic system including dimethyl sulfoxide, dimethylformamide, and room temperature ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate was employed to fabricate imprinted monolith with high porosity and good flow-through properties, in which chicoric acid (CA), zinc acetate, 4-vinylpyridine (4-VP), and ethylene glycol dimethacrylate (EDMA) was the template, metallic ion, functional monomer, as well as crosslinker, respectively. The influence of polymerization factors including the 4-VP-CA ratio, monomer-crosslinker ratio, template-Zn2+ ratio on imprinting factors was systematically investigated. When the ratio of 4-VP to CA was 24:1, the greatest IF value (24.81) was achieved on the CA-MIP prepared with zinc acetate. In addition, off-line SPE with the optimal MIPs monolith led to high purity of CA (98.0% +/- 0.5%) from extraction of Cichorium intybus L. roots with the recovery of 77.5% +/- 2.5% (n = 6). As a conclusion, the strategy of introducing metal ions as metal pivot to prepare MIPs was a powerful method for the MIPs synthesis to the template molecules with intramolecular hydrogen bonds.

KeywordMolecularly Imprinted Polymer Zn(Ii) Metallic Pivot Solid Phase Extraction Chicoric Acid Intramolecular Hydrogen Bonds
DOI10.1007/s00216-017-0765-0
Indexed BySCI
WOS IDWOS:000419127900005
Citation statistics
Document Type期刊论文
Identifierhttp://ir.xjipc.cas.cn/handle/365002/5115
Collection省部共建新疆特有药用资源利用重点实验室
资源化学研究室
Corresponding AuthorAisa, HA (Aisa, Haji Akber)
Affiliation1.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Urumqi 830011, Xinjiang, Peoples R China
2.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, State Key Lab Basis Xinjiang Indigenous Med Plant, Urumqi 830011, Xinjiang, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Sun, YK ,Jia, M ,Yang, J ,et al. A strategy of utilizing Zn(II) as metallic pivot in room temperature ionic liquid to prepare molecularly imprinted polymers for compound with intramolecular hydrogen bonds[J]. ANALYTICAL AND BIOANALYTICAL CHEMISTRY,2018,410(2):349-359.
APA Sun, YK ,Jia, M ,Yang, J ,Huang, YP ,Liu, ZS ,&Aisa, HA .(2018).A strategy of utilizing Zn(II) as metallic pivot in room temperature ionic liquid to prepare molecularly imprinted polymers for compound with intramolecular hydrogen bonds.ANALYTICAL AND BIOANALYTICAL CHEMISTRY,410(2),349-359.
MLA Sun, YK ,et al."A strategy of utilizing Zn(II) as metallic pivot in room temperature ionic liquid to prepare molecularly imprinted polymers for compound with intramolecular hydrogen bonds".ANALYTICAL AND BIOANALYTICAL CHEMISTRY 410.2(2018):349-359.
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