Selective solid-phase extraction of naphazoline using imprinted polymers as matrix prepared by precipitation polymerization

2010 ◽  
pp. n/a-n/a
Author(s):  
Lan Xu ◽  
Ruihong Lv ◽  
Yaqiong Wang ◽  
Jiuzhi Gao
Keyword(s):  
Solid Phase Extraction ◽  
Solid Phase ◽  
Precipitation Polymerization ◽  
Phase Extraction ◽  
Imprinted Polymers

Application of molecularly imprinted polymers for the solid-phase extraction of hexanitrohexaazaisowurtzitane (CL-20) from soil samples

2016 ◽  
Vol 8 (22) ◽  
pp. 4413-4420 ◽  
Author(s):  
Jian Wang ◽  
Min Xue ◽  
Zihui Meng ◽  
Zhibin Xu ◽  
Jun Luo
Keyword(s):  
Solid Phase Extraction ◽  
Molecularly Imprinted Polymers ◽  
Solid Phase ◽  
Precipitation Polymerization ◽  
Soil Samples ◽  
Phase Extraction ◽  
Molecularly Imprinted ◽  
Imprinted Polymers

Eight molecularly imprinted polymers (MIPs) for CL-20 were synthesized by precipitation polymerization in acetonitrile.

scholarly journals A Novel Molecular Imprint Polymer Synthesis for Solid Phase Extraction of Andrographolide

2019 ◽  
Vol 19 (1) ◽  
pp. 219
Author(s):  
Hemavathi Krishnan ◽  
A.K.M. Shafiqul Islam ◽  
Zainab Hamzah ◽  
Pubalan Nadaraja ◽  
Mohd Noor Ahmad
Keyword(s):  
Solid Phase Extraction ◽  
Solid Phase ◽  
Computational Study ◽  
Bioactive Compound ◽  
Precipitation Polymerization ◽  
Isotherm Models ◽  
Phase Extraction ◽  
Functional Monomer ◽  
Imprinted Polymers ◽  
Molecular Imprint

The use of molecularly imprinted polymers for Solid phase micro-extraction (SPME) of bioactive compounds are getting popularity. The interest on efficient extraction process of andrographolide from the plant is increasing due to their vast therapeutic applications. In this study, andrographolide imprinted MIP was prepared by precipitation polymerization method using the non-covalent technique to use as sorbent materials for solid phase extraction of the bioactive compound. HyperChem 8.0.10 software was used to investigate and optimize the template and functional monomer ratio in the pre-polymerization system to synthesize the imprinted polymers. Molecular modeling gives information about molecular interactions and the Gibbs free energies of the pre-polymerization complex. Based on the computational study, andrographolide, methacrylic acid (MAA) and ethylene glycol dimethacrylate (EGDMA) were used as the template, functional monomer, and cross-linker, respectively at the 1:3:20 ratios. The MIPs were characterized by kinetic study and imprinting factor. The binding parameters for the recognition of andrographolide were studied using Langmuir, Freundlich and Langmuir-Freundlich adsorption isotherm models. Andrographolide MIP contains the maximum number of binding sites with the adsorption capacity of 149.59 μg/g. The SPME experimental data best fit with Langmuir-Freundlich isotherm model with the R2 value of 0.997. This research shows that the MIPs prepared by precipitation polymerization gives a good extraction capability using SPME method.

Preparation of Roxarsone Imprinted Polymers and Its Application to Solid Phase Extraction

2013 ◽  
Vol 41 (9) ◽  
pp. 1401
Author(s):  
Gao-Kui ZHANG ◽  
Jian-Wen YANG ◽  
Zong-Nan WANG ◽  
Kui BIAN ◽  
Hai-Cui YANG ◽  
...  
Keyword(s):  
Solid Phase Extraction ◽  
Solid Phase ◽  
Phase Extraction ◽  
Imprinted Polymers

Highly selective enrichment and direct determination of imazethapyr residues from milk using magnetic solid-phase extraction based on restricted-access molecularly imprinted polymers

2021 ◽  
Author(s):  
Shicong Jia ◽  
yanqiang zhou ◽  
Jianmin Li ◽  
Bolin Gong ◽  
Shujuan Ma ◽  
...  
Keyword(s):  
Solid Phase Extraction ◽  
Molecularly Imprinted Polymers ◽  
Solid Phase ◽  
Direct Determination ◽  
Magnetic Solid Phase Extraction ◽  
Phase Extraction ◽  
Molecularly Imprinted ◽  
Restricted Access ◽  
Imprinted Polymers ◽  
Magnetic Solid

The restricted access media magnetic molecularly imprinted polymers (RAM-MMIPs) were prepared as magnetic solid phase extraction (M-SPE) material by reversible addition fragmentation chain transfer (RAFT) technique. The resulting RAM-MMIPs had...

The Application of Molecularly Imprinted Polymers to Solid-Phase Extraction

2014 ◽  
Vol 893 ◽  
pp. 283-286
Author(s):  
Hong Ying Pei ◽  
Gui Jun Shen ◽  
Yu Du
Keyword(s):  
Solid Phase Extraction ◽  
Molecularly Imprinted Polymers ◽  
Biological Samples ◽  
Solid Phase ◽  
Phase Extraction ◽  
Molecularly Imprinted ◽  
Imprinted Polymers ◽  
Structural Analogues ◽  
Environmental And Biological Samples

A benefit of imprinted polymers is the possibility to prepare sorbents with selectivity pre-determined for a particular substance, or group of structural analogues. The application most close to a wider acceptance is probably that of solid phase extraction for clean-up of environmental and biological samples. The technique of molecularly imprinted polymers to solid phase extraction (MISPE) is performance and high selectively, compared with traditional sorbents. In this paper, the preparation and application of MIPs would be reviewed.

scholarly journals Development of Surface Molecularly Imprinted Polymers as Dispersive Solid Phase Extraction Coupled with HPLC Method for the Removal and Detection of Griseofulvin in Surface Water

2019 ◽  
Vol 17 (1) ◽  
pp. 134 ◽  
Author(s):  
Kamran Bashir ◽  
Zhimin Luo ◽  
Guoning Chen ◽  
Hua Shu ◽  
Xia Cui ◽  
...  
Keyword(s):  
Surface Water ◽  
Solid Phase Extraction ◽  
Molecularly Imprinted Polymers ◽  
Water Samples ◽  
Solid Phase ◽  
Phase Extraction ◽  
Dispersive Solid Phase Extraction ◽  
Molecularly Imprinted ◽  
Imprinted Polymers ◽  
Surface Water Samples

Griseofulvin (GSF) is clinically employed to treat fungal infections in humans and animals. GSF was detected in surface waters as a pharmaceutical pollutant. GSF detection as an anthropogenic pollutant is considered as a possible source of drug resistance and risk factor in ecosystem. To address this concern, a new extraction and enrichment method was developed. GSF-surface molecularly imprinted polymers (GSF-SMIPs) were prepared and applied as solid phase extraction (SPE) sorbent. A dispersive solid phase extraction (DSPE) method was designed and combined with HPLC for the analysis of GSF in surface water samples. The performance of GSF-SMIPs was assessed for its potential to remove GSF from water samples. The factors affecting the removal efficiency such as sample pH and ionic strength were investigated and optimized. The DSPE conditions such as the amount of GSF-SMIPs, the extraction time, the type and volume of desorption solvents were also optimized. The established method is linear over the range of 0.1–100 µg/mL. The limits of detection and quantification were 0.01 and 0.03 µg/mL respectively. Good recoveries (91.6–98.8%) were achieved after DSPE. The intra-day and inter-day relative standard deviations were 0.8 and 4.3% respectively. The SMIPs demonstrated good removal efficiency (91.6%) as compared to powder activated carbon (67.7%). Moreover, the SMIPs can be reused 10 times for water samples. This is an additional advantage over single-use activated carbon and other commercial sorbents. This study provides a specific and sensitive method for the selective extraction and detection of GSF in surface water samples.

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