Synthesis and evaluation of a molecularly imprinted polymer for selective adsorption and quantification of Acid Green 16 textile dye in water samples

An alternative for determining environmental pollutants, like textile dyes, is the use of molecularly imprinted polymers (MIPs) as solid phase extraction (SPE) or as sensor recognition systems. MIPs are tailor-made artificial receptor sites in a polymer, which present good affinity and selectivity....

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Bibliographic Details
Published in:Talanta (Oxford) 2017-08, Vol.170, p.244-251
Main Authors: Foguel, Marcos Vinicius, Pedro, Natacha Thaisa Bello, Wong, Ademar, Khan, Sabir, Zanoni, Maria Valnice Boldrin, Sotomayor, Maria del Pilar Taboada
Format: Article
Language:English
Subjects:
Acid green 16
Adsorption
Chromatography, High Pressure Liquid - methods
Coloring Agents - analysis
Coloring Agents - isolation & purification
Dye
Environmental pollutant
Equipment Design
Imidazoles - chemical synthesis
Imidazoles - chemistry
Limit of Detection
Lissamine Green Dyes - analysis
Lissamine Green Dyes - isolation & purification
Methacrylates - chemical synthesis
Methacrylates - chemistry
Molecular Imprinting - instrumentation
Molecular Imprinting - methods
Molecularly imprinted polymer
Polymers - chemical synthesis
Polymers - chemistry
Solid phase extraction
Solid Phase Extraction - instrumentation
Solid Phase Extraction - methods
Synthetic recognizer
Tandem Mass Spectrometry - methods
Textiles - analysis
Water - analysis
Water Pollutants, Chemical - analysis
Water Pollutants, Chemical - isolation & purification
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Summary:An alternative for determining environmental pollutants, like textile dyes, is the use of molecularly imprinted polymers (MIPs) as solid phase extraction (SPE) or as sensor recognition systems. MIPs are tailor-made artificial receptor sites in a polymer, which present good affinity and selectivity. This work shows the synthesis of MIPs for the Acid Green 16 (AG16) textile dye and the results of rebinding, selectivity and application of this MIP in water samples. MIP synthesis was performed using AG16 dye (template), 1-vinylimidazole (functional monomer), ethylene-glycol-dimethacrylate (cross-link), 2,2′-azobis(2-methylpropionitrile) (initiator) and methanol (solvent) by bulk synthesis. The imprinted polymer presented excellent rebinding of 83%, an imprinted factor of 6.91 and great selectivity in comparison with other textile dyes. Additionally, the MIP showed high efficiency in the extraction of this dye in water samples, presenting a recovery rate close to 100% and a better performance when compared to commercial SPE cartridges. Due to this excellent performance for AG16, the application of this MIP to determine dyes in different matrices of environmental importance is promising. [Display omitted] •The development of a unique MIP to the Acid Green 16 dye.•The excellent rebinding of AG16 to MIP and good selectivity.•Recovery close to 100% when applied to water samples, without any pretreatment.
ISSN:0039-9140
1873-3573
DOI:10.1016/j.talanta.2017.04.013