Barbell-shaped stir bar sorptive extraction using dummy template molecularly imprinted polymer coatings for analysis of bisphenol A in water

2016 ◽  
Vol 408 (19) ◽  
pp. 5329-5335 ◽  
Author(s):  
Ruimei Liu ◽  
Feng Feng ◽  
Guolin Chen ◽  
Zhimin Liu ◽  
Zhigang Xu
Keyword(s):  
Bisphenol A ◽  
Molecularly Imprinted Polymer ◽  
Polymer Coatings ◽  
Stir Bar Sorptive Extraction ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Sorptive Extraction ◽  
Dummy Template

Cyromazine imprinted polymers for selective stir bar sorptive extraction of melamine in animal feed and milk samples

The Analyst ◽  
2015 ◽  
Vol 140 (12) ◽  
pp. 4057-4067 ◽  
Author(s):  
Wenying Fan ◽  
Mingqi Gao ◽  
Man He ◽  
Beibei Chen ◽  
Bin Hu
Keyword(s):  
Molecularly Imprinted Polymer ◽  
Animal Feed ◽  
Stir Bar Sorptive Extraction ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Imprinted Polymers ◽  
Milk Samples ◽  
Sorptive Extraction ◽  
Dummy Template

A molecularly imprinted polymer coated stir bar was prepared using a self-designed polytetrafluoroethylene mold andin situpolymerization, with cyromazine as dummy template for target melamine.

scholarly journals A Phenolphthalein-Dummy Template Molecularly Imprinted Polymer for Highly Selective Extraction and Clean-Up of Bisphenol A in Complex Biological, Environmental and Food Samples

Polymers ◽  
2018 ◽  
Vol 10 (10) ◽  
pp. 1150 ◽  
Author(s):  
Jiajia Yang ◽  
Yun Li ◽  
Chaonan Huang ◽  
Yanna Jiao ◽  
Jiping Chen
Keyword(s):  
Bisphenol A ◽  
Molecularly Imprinted Polymer ◽  
Particle Diameter ◽  
Selective Extraction ◽  
Food Samples ◽  
Array Detector ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Dummy Template ◽  
Relative Standard

A molecularly imprinted polymer (MIP) for highly selective solid-phase extraction (SPE) of bisphenol A (BPA) was prepared using phenolphthalein (PP) as the novel dummy template by bulk polymerization. A particle diameter distribution of 40–60 μm, a specific surface area of 359.8 m2·g−1, and a total pore volume of 0.730 cm3·g−1 for the prepared PP-imprinted polymer (PPMIP) were obtained. Good selectivity and specific adsorption capacity for BPA of the prepared PPMIP were also demonstrated by the chromatographic evaluation and sorption experiments. The PPMIP as a SPE sorbent was evaluated for the selective extraction and clean-up of BPA from complex biological, environmental, and food samples. Meanwhile, an accurate and sensitive analytical method based on the PPMIP-SPE purification procedure coupled with high performance liquid chromatography-diode array detector (HPLC-DAD) detection has been successfully developed for the rapid determination of BPA from these samples, with detection limits of 1.3 ng·mL−1 for bovine serum and milk, 2.6 ng·mL−1 for human urine and edible oil, 5.2 ng·mL−1 for soybean sauce, and 1.3 ng·g−1 for sediment. The BPA recoveries at two different spiking levels were in the range of 82.1–106.9%, with relative standard deviation (RSD) values below 7.7%.

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