Different formats of imprinted polymers for determining organotin compounds in environmental samples

Gallego-Gallegos, Mercedes; Muñoz-Olivas, Riánsares; Cámara, Carmen

doi:10.1016/j.jenvman.2008.07.020

Cited by 20 publications

(14 citation statements)

References 43 publications

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“…Research into novel MIPs and their application for drugs and pollutants determination, in biological and environmental samples have been the base activity of molecular imprint‐based solid‐phase extraction (MISPE) domain 2–7. MISPE has been used to determine drugs in biological fluids,8–12 water,13, 14 apple extracts, and urine 15.…”

Section: Introductionmentioning

confidence: 99%

Molecularly imprinted “bulk” copolymers as selective sorbents for gallic acid

Nicolescu

Sârbu

Dima

et al. 2012

J of Applied Polymer Sci

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We report the synthesis of molecularly imprinted sorbents, selective for gallic acid. The particles were prepared by using acrylic acid, acrylonitrile, and hydroxyethyl methacrylate as functional monomers, whereas ethyleneglycol dimethacrylate and 1,4buthanediol dimethacrylate were used as crosslinkers. Preparation and manipulation protocols were adjusted considering template's nature. To highlight the influence of monomer/crosslinker nature upon imprinted particles, the adsorption capacity, the imprinting factor, and the distribution and selectivity coefficients were calculated. An imprinting factor of 3.53 and a selectivity coefficient of 6.86 were found for hydroxyethyl methacrylate/ethylene glycol methacrylate system.

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Section: Introductionmentioning

confidence: 99%

Molecularly imprinted “bulk” copolymers as selective sorbents for gallic acid

Nicolescu

Sârbu

Dima

et al. 2012

J of Applied Polymer Sci

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“…Since 2000, sample pretreatment methods have undergone considerable development, also due to the use of nano-structured liquids, named supramolecular solvents that combine extraction and clean-up in a single stage [8 , 9] , and due to selective sorbents, such as molecularly imprinted polymers (MIPs), which are synthetic tailor-made separation polymers having a predetermined selectivity for a given analyte, or group of structurally related compounds. MIPs are obtained by polymerizing functional and cross-linking monomers around a template molecule, leading to a highly cross-linked three-dimensional network polymer [10 , 11] . The resulting imprinted polymers are highly stable, robust and resistant against physicochemical perturbations such as pH value, solvents and temperature.…”

Section: Methods Detailsmentioning

confidence: 99%

A rapid analysis of Bisphenol A using MISPE coupled with HPLC-FLD in tissues of food-producing animals

Cerkvenik-Flajs

Šturm

2021

MethodsX

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Bisphenol A (BPA) is a highly-produced organic compound of anthropogenic origin with a wide-range use and is ubiquitously present in both living organisms and the environment. A previously published analytical method for testing of the free (aglycone) BPA in foodstuffs was simplified and optimized for sheep muscle tissue, kidney and liver, by using only a single MISPE purification step allied with HPLC-FLD analysis. The recovery rates and RSD values over a concentration range of 1–10 µg/kg were in the range of 67‒86% and 3‒34%, respectively, while linearity in the matrix, represented by the r 2 , was ≥0.999. LOD values were 0.5‒1 µg/kg and LOQ values were 1 µg/kg. The analytical method used is a contribution to the field of veterinary toxicology and food testing and also proved to be applicable for other food-producing animal species, e.g. pigs, poultry and freshwater fish. The MISPE sorbent material for testing of BPA was reusable, with up to five re-use cycles without significant loss in performance characteristics. The paper reports on a rapid determination of free (aglycone) BPA in tissues of food-producing animals by HPLC-FLD and presents a substantial improvement of analytical performance with regard to time- and cost-savings, as well as environmental protection. MISPE is an advanced analytical technology, and the results proved that in a single and simplified SPE step it had good performance characteristics such as selectivity, recovery and precision, allied with low LOD and LOQ values. It was proved that MISPE BPA cartridges could be used at least five times without significant loss of methodological recovery and precision.

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“…MIPs are tailor-made materials with high selectivity for a target compound which is known as template molecule [17]. Since their discovery in 1972, MIPs have gained considerable interest from scientists and engineers all over the world.…”

Section: Desalination and Water Treatmentmentioning

confidence: 99%