Preparation and evaluation of molecularly imprinted ionic liquids polymer as sorbent for on-line solid-phase extraction of chlorsulfuron in environmental water samples

Guo, Lingling; Deng, Qiling; Fang, Guozhen; Gao, Wei; Wang, Shuo

doi:10.1016/j.chroma.2011.07.016

Cited by 97 publications

(39 citation statements)

References 23 publications

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“…2) at 1459 cm −1 was attributable to imidazole groups immobilizing on the polymers and peaks at 1542 and 1565 cm − 1 corresponded to C-H vibration of the imidazole ring [6]. In addition, the wavelength from 3000 to 3700 cm −1 indicated the intensity of the nitrogen fraction (N-H) [34], while 2880-3000 cm −1 was the characteristic region for C-H absorption [35].…”

Section: Performance Evaluation Of the Ionic Liquid Functionalized Pomentioning

confidence: 96%

“…In addition, ILs have been introduced as an important component to form task-specific polymers, which will be capable of interacting with analytes or substrates in specific ways. And the IL-based polymers are favorable candidates as adsorption materials used in sample pretreatment due to their excellent physical and chemical properties [6,7]. Until now, ILs has been used as a solvent or porogen in the preparation of polymer, which can accelerate the synthesis process and improve the adsorption of the polymers [8].…”

Section: Introductionmentioning

confidence: 99%

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Polymethacrylate microparticles covalently functionalized with an ionic liquid for solid-phase extraction of fluoroquinolone antibiotics

et al. 2015

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Microparticles were synthesized by suspension copolymerization of the synthetic ionic liquid (IL) 1-allyl-3-methylimidazolium bromide with ethylene glycol dimethacrylate. The particles have a regular spherical shape and an average diameter of 65±24 μm. Their affinity for the fluoroquinolone antibiotics ofloxacin (OFL), lomefloxacin (LOM) and ciprofloxacin (CIP) is much higher than that of the blank polymer (not containing an IL), of polymers using methacrylic acid as functional monomer, of hydrophilic-lipophilic balanced sorbents, and of C 18 sorbents. The microparticles were applied to the solid-phase extraction and rapid preconcentration of the fluoroquinolones from urine which then were quantified by HPLC. The calibration plot covers the 0.05 to 20 μg mL −1 concentration range, and the average recoveries at three spiking levels range from 93.6 to 103.7 %, with RSD of ≤5.7 %. The method was successfully applied to the determination of fluoroquinolones in spiked urine.

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Section: Performance Evaluation Of the Ionic Liquid Functionalized Pomentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Polymethacrylate microparticles covalently functionalized with an ionic liquid for solid-phase extraction of fluoroquinolone antibiotics

et al. 2015

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“…[23][24][25] Recently, ILs have been used in the preparation of polymeric materials, and IL-based monolith columns have shown good results when they have been applied in SPE because of their high selectivity and wide operating pH range. 23 The imidazolyl group is normally used as the organic cation in IL compositions because the carbocation is easily obtained from the imidazolyl ring. ILs have good compatibility with most solvents, and this enhances the miscibility of the prepolymerization solution and then improves the structural uniformity of the monolith.…”

Section: 18mentioning

confidence: 99%

Determination of trace macrolide antibiotics in milk with online solid‐phase extraction with an ionic‐liquid‐based monolithic column

Liu

Zong

Wei

et al. 2016

J of Applied Polymer Sci

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An ionic liquid (IL)-based monolithic poly(ionic liquid glycidylmethacrylate-co-ethylene glycol dimethacrylate) column was prepared via in situ free-radical polymerization with 1-vinyl-3-butylimidazolium chlorine as one of the comonomers. The obtained monolithic column was used as the sorbent of solid-phase extraction (SPE) and coupled with high-performance liquid chromatography for the simultaneous determination of the macrolide antibiotics roxithromycin (ROX) and acetylspiramycin (ACE) in processed pure milk. The monolithic column was characterized by Fourier transform infrared spectrometry, scanning electron microscopy, nitrogen absorption-desorption, mercury intrusion porosimetry, and thermogravimetric analysis. The results reveal that the monolithic column exhibited a high selectivity and good permeability to the macrolide antibiotics in milk. The optimized method offered excellent linearity with a linear regression coefficient greater than 0.998. The precisions for interday and intraday were both less than 7.7%. The accuracies expressed by the recoveries for ROX and ACE were in the ranges 92.5-103.8 and 93.0-107.6%, respectively. Compared to the previous methods, this method had a low limit of detection and a good accuracy. As a result, the polymer IL based monolithic column could feasibly be used as a high-selectivity online SPE sorbent for determining trace macrolide antibiotics in milk.

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“…These research works mainly focused on the analytes of Sudan dyes [98], Para Red [99], riboflavin [100], fluoroquinolone antimicrobials [101], tetracycline antibiotic residues [102], triazine residues [103] and estrogens [104] in samples from the environment (e.g., water and soil) and food (e.g., tomato sauce, chili sauce, egg, and milk). Guo et al [105] synthesized chlorsulfuron-MIPs by using vinylimidazolium ionic liquid as functional monomer. MIPs were also used as the on-line SPE-HPLC sorbents for the determination of chlorsulfuron in samples of reservoir water, pond water, detergent and tap water.…”

Section: On-line Molecularly-imprinted Solid-phase Extractionmentioning

confidence: 99%

Recent advances in solid-phase sorbents for sample preparation prior to chromatographic analysis

Wen

Chen

et al. 2014

TrAC Trends in Analytical Chemistry

334

123

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A B S T R A C TSample preparation is a crucial bottleneck in the whole analytical process. Solid-phase sorbents (SPSs) have aroused increasing interest in research on sample preparation, as they have key roles in obtaining high clean-up and enrichment efficiency in the analysis of trace targets present in complex matrices. The objective of this review is to provide a broad overview of the recent advances and applications of SPSs in sample preparation prior to chromatographic analysis, during the period 2008-13. We include SPSs, such as molecularly-imprinted polymers, carbon nanomaterials, metallic nanoparticles and metal organic frameworks, focusing on solid-phase extraction, solid-phase microextraction, matrix solid-phase dispersion and stir-bar sorptive extraction of typical pollutants in environmental, biological, food and pharmaceutical samples. We propose remaining challenges and future perspectives to improve development of new SPSs and to apply them further.

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Preparation and evaluation of molecularly imprinted ionic liquids polymer as sorbent for on-line solid-phase extraction of chlorsulfuron in environmental water samples

Cited by 97 publications

References 23 publications

Polymethacrylate microparticles covalently functionalized with an ionic liquid for solid-phase extraction of fluoroquinolone antibiotics

Polymethacrylate microparticles covalently functionalized with an ionic liquid for solid-phase extraction of fluoroquinolone antibiotics

Determination of trace macrolide antibiotics in milk with online solid‐phase extraction with an ionic‐liquid‐based monolithic column

Recent advances in solid-phase sorbents for sample preparation prior to chromatographic analysis

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