Evaluation of a molecularly imprinted polymer for determination of steroids in goat milk by matrix solid phase dispersion

Casado, Natalia; Morante‐Zarcero, Sonia; Gallego-Picó, Alejandrina; Martínez, Rosa María Goig; Fernández-Hernando, P.; Sierra, Isabel

doi:10.1016/j.talanta.2014.03.041

Cited by 46 publications

(17 citation statements)

References 26 publications

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“…[4][5][6][7] Even though SPE showed these advantages over LLE, the technique is still time consuming, expensive, often require further clean-up steps and large initial sample volume. 16,18,[20][21][22][23][24][25] As far as the solid samples are concerned, during the past two decades, traditional solid liquid extraction methods have been replaced by pressurized liquid extraction (PLE) and microwave assisted extraction methods. 10 Microextraction techniques have become a developing research interest due to the simplicity and small sample and solvent volumes associated with them.…”

Section: Extraction Methods Of Steroidal Estrogensmentioning

confidence: 99%

Recent advancements in analytical methods for the determination of steroidal estrogen residues in environmental and food matrices

Gunatilake¹,

Munasinghe²,

Ranaweera³

et al. 2016

Anal. Methods

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Residue steroidal estrogens in environmental and food samples have become a cause for concern as they can affect organisms at low ppt concentrations. Analytical method development plays a key role in trace estrogen analysis due to the combination of low concentrations and complicated sample matrices. Reliable quantification of these trace level steroidal estrogens has become a major concern during the past decade. This mini review focuses on advancements in analytical methods developed for estrogen detection and quantification in environmental and food samples from 2014 -2016. A comprehensive overview of the novelties and the advantages of the recently developed sample pre-concentration, clean-up, and detection methods are discussed. During the past three years, a wide variety of sample extraction methods including, the utilization of innovative imprinted magnetic sorbents, QuEChERS (Quick, Easy, Cheap, Effective, Rugged and Safe) method and various microextraction methods such as Dispersive liquid-liquid micro extraction (DLLME), Thin film micro extraction (TFME), Solid phase microextraction (SPME), and Vortex assisted hollow fiber liquid-phase micro extraction (VA-HF-LPME) have been

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Section: Extraction Methods Of Steroidal Estrogensmentioning

confidence: 99%

Recent advancements in analytical methods for the determination of steroidal estrogen residues in environmental and food matrices

Gunatilake¹,

Munasinghe²,

Ranaweera³

et al. 2016

Anal. Methods

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“…Since the first application of MIPs in MSPD in 2007 [31] to extract fluoroquinolone (FQ) residues from chicken eggs and swine tissues, these polymers have been employed in several works, mainly applied to liquid and viscous samples, such as water [32] and milk [33,34], but also to samples of vegetable [25,35] and animal tissue [36]. To overcome the problem of template leakage, a dummy template, daidzein, was used to create specific molecular recognition sites for FQs in the synthesized MIP [37]; the polymer was then used in the MSPD extraction of FQs from fish muscle.…”

Section: Molecularly-imprinted Polymersmentioning

confidence: 99%

“…For the analysis of trace steroids [34], 0.2 mL of goat's milk was blended with 0.048 g of MIP-E2, together with Na 2 SO 4 and sea sand to obtain a dry mixture, thus facilitating its transfer into the cartridge. The five target steroids were eluted directly from the cartridge without any previous washing step.…”

Section: Molecularly-imprinted Polymersmentioning

confidence: 99%

Recent advances and developments in matrix solid-phase dispersion

Capriotti

Cavaliere

Foglia

et al. 2015

TrAC Trends in Analytical Chemistry

104

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“…Since this polymerization route is the simplest method for preparation of a polymer with uniform shapes. Nowadays, the steroid‐imprinted polymers have been applied for analysis of the steroids in cosmetics, urine, and dairy products . Nevertheless, there is no paper published in the preparation of prednisolone molecularly imprinted polymers (prednisolone‐MIPs) by precipitation polymerization.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of prednisolone molecularly imprinted polymer nanoparticles by precipitation polymerization

Phungpanya

Chaipuang

Machan

et al. 2018

Polymers for Advanced Techs

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The prednisolone molecularly imprinted polymer nanoparticles (prednisolone-MIPs) were prepared via precipitation polymerization. The synthetic conditions were performed by optimizing of functional monomers (acrylamide and methacrylic acid) and crosslinkers (ethylene glycol dimethacrylate and pentaerythritol triacrylate) with defined the synthetic ratio of template molecule:functional monomer:crosslinker as 1:7:30. The acquired MIPs were studied for their binding quantitation by kinetic adsorption analysis. Two of four synthetic conditions reached an equilibrium binding capacity at 960 minutes. In addition, the equilibrium adsorption, kinetic models, adsorption isotherms, and molecular selectivity were also evaluated in this study.The pseudo-second order was the best fitted kinetic model with good agreement on Langmuir isotherm of both optimum conditions. The molecular recognition of prednisolone-MIPs was further carried out to demonstrate the selectivity performance and found that prednisolone-MIPs had a good recognition to target prednisolone rather than structural analogue.

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Evaluation of a molecularly imprinted polymer for determination of steroids in goat milk by matrix solid phase dispersion

Cited by 46 publications

References 26 publications

Recent advancements in analytical methods for the determination of steroidal estrogen residues in environmental and food matrices

Recent advancements in analytical methods for the determination of steroidal estrogen residues in environmental and food matrices

Recent advances and developments in matrix solid-phase dispersion

Synthesis of prednisolone molecularly imprinted polymer nanoparticles by precipitation polymerization

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