Urinary l -kynurenine quantification and selective extraction through a molecularly imprinted solid-phase extraction device

2018 ◽  
Vol 41 (16) ◽  
pp. 3204-3212 ◽  
Author(s):  
Lucia Mergola ◽  
Ciriana Orabona ◽  
Elisa Albini ◽  
Giuseppe Vasapollo ◽  
Sonia Scorrano ◽  
...  
Keyword(s):  
Solid Phase Extraction ◽  
Solid Phase ◽  
Selective Extraction ◽  
Phase Extraction ◽  
Molecularly Imprinted ◽  
Extraction Device

Solid-phase extraction using molecularly imprinted polymers for selective extraction of a mycotoxin in cereals

2010 ◽  
Vol 1217 (43) ◽  
pp. 6668-6673 ◽  
Author(s):  
Wassim Hadj Ali ◽  
Delphine Derrien ◽  
Florent Alix ◽  
Céline Pérollier ◽  
Olivier Lépine ◽  
...  
Keyword(s):  
Solid Phase Extraction ◽  
Molecularly Imprinted Polymers ◽  
Solid Phase ◽  
Selective Extraction ◽  
Phase Extraction ◽  
Molecularly Imprinted ◽  
Imprinted Polymers

scholarly journals Application of Molecular Imprinted Polymers for Selective Solid Phase Extraction of Bisphenol A

2016 ◽  
Vol 23 (4) ◽  
pp. 651-664 ◽  
Author(s):  
Anna Poliwoda ◽  
Małgorzata Mościpan ◽  
Piotr P. Wieczorek
Keyword(s):  
Bisphenol A ◽  
Solid Phase Extraction ◽  
Methacrylic Acid ◽  
Solid Phase ◽  
Selective Extraction ◽  
Phase Extraction ◽  
Aqueous Samples ◽  
Molecularly Imprinted ◽  
Imprinted Polymers ◽  
Relative Standard

Abstract Selective molecularly imprinted polymers (MIPs) with bisphenol A as template were synthesized using the non-covalent imprinting approach. MIPs were prepared using thermally initiated polymerization with 1,1’-azobis(cyclohexanecarbonitryle) (ACHN) as initiator and ethylene glycol dimethacrylate (EDMA) as a cross-linking agent. The tested functional monomers included methacrylic acid, acrylamide, and 4-vinylpyridine. The selectivity of the BPA-MIP for the solid phase extraction of bisphenol A was tested in samples containing other related alkylphenols. The polymers prepared in acetonitrile using methacrylic acid or acrylamide as monomer showed the highest selectivity towards target analyte (the selectivity ratio 8:1, respectively for MIP and NIP). The proposed procedure has been proven to be an effective for selective extraction of bisphenol A in aqueous samples (recoveries over 85%) enabling detection and quantification limits of 25 and 70 μg/dm3, respectively based on 10 cm3 of sample volume, with relative standard deviations (RSD) lower than 6%. The obtained molecularly imprinted material showed interesting properties for selective extraction and preconcentration of studied analyte from large volumes of aqueous samples without any problems of cartridge clogging.

Sign in / Sign up

Export Citation Format

Share Document