Molecularly Imprinted Stir Bar Sorptive Extraction Coupled with High-Performance Liquid Chromatography for Trace Analysis of Diclofenac in Different Real Samples

Molecularly imprinted stir bar sorptive extraction coupled with high performance liquid chromatography for trace analysis of sulfa drugs in complex samples.

A novel sulfamethazine molecularly imprinted polymer (MIP)-coated stir bar for sorptive extraction of eight sulfa drugs from biological samples was prepared. The MIP-coating was about 20 μm thickness with the relative standard deviation (RSD) of 6.7% (n=10). It was characterized by scanning electron microscope, infrared spectrum, thermogravimetric analysis, and solvent-resistant investigation, ...

molecularly imprinted polymers (mip) for selective solid phase extraction of celecoxib in urine samples followed by high performance liquid chromatography

in this study, for the analysis of human urine samples, a novel method explained for the determination of celecoxib, a nonsteroidal anti-inflammatory drug (nsaid), using molecularly imprinted solid-phase extraction (mispe) coupled with high-performance liquid chromatography (hplc). the synthesis of the mip was performed by precipitation polymerization in methacrylic acid (maa), ethylene glycol ...

Stir Bar Sorptive Extraction (SBSE) applied to Environmental Aqueous Samples

GAS CHROMATOGRAPHY MASS SPECTROMETRY Trace analysis of chlorophenols in river water samples by stir bar sorptive extraction with in situ derivatization and thermal desorption-gas chromatography-mass spectrometry

Chlorophenols are one on the indicators for monitoring dioxins. It is reported that correlation is between the amount of chlorophenols and dioxin which are generated by garbage incineration. Moreover, if chlorine processing of the phenol in tap water is carried out, chlorophenols are generated and the nasty smell has been a problem. Furthermore, the estrogenic activity of 2,4dichlorophenol as t...

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

In this work, a molecularly imprinted polymer (MIP) coated stir bar was prepared using a self-designed polytetrafluoroethylene (PTFE) mold and in situ polymerization, with cyromazine as the dummy template for the target melamine. The prepared MIP coated stir bar presented a uniform and porous surface as well as good chemical stability and selectivity for melamine. Based on it, a method of MIP c...

Stir bar sorptive extraction coupled to liquid chromatography-tandem mass spectrometry for the 2 determination of pesticides in water samples: method validation and measurement uncertainty

Authors 4 Christelle Margoum, Céline Guillemain, Xi Yang, Marina Coquery 5 a Irstea, UR MALY, 5 rue de la Doua, CS 70077, F-69626 Villeurbanne Cedex, France 6 b State Key Laboratory of Pollution Control and Resource Reuse, Nanjing University, 210093 Nanjing, China 7 *corresponding author Tel. +33472208711; fax: +33478477875; E-mail address: [email protected] 8 9 10 Abstract 11 Stir b...