Magnetic molecularly imprinted polymer combined with solid-phase extraction for detection of kojic acid in cosmetic products

Tang, Jie; Ren, Yueran; Zhu, Liehuang; Chen, Yuncan; Liu, Shaomin; Zhu, Lihua

doi:10.1016/j.microc.2022.108028

Cited by 12 publications

(3 citation statements)

References 47 publications

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“…This observation can be attributed to the presence of abundant selective sites on the surface of MIP@MKLN, while the adsorption of NIP@MKLN relied on nonspecific interactions in the absence of selective sites. The results underscore that the presence of selective binding sites on MIP@MKLN contributes to both enhanced binding affinity and accelerated mass transfer for TBZ in comparison to NIP@MKLN 37 …”

Section: Resultsmentioning

confidence: 78%

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Preparation of surface molecularly‐imprinted magnetic kaolin for selective separation and determination of thiabendazole

Zengin

2024

J of Applied Polymer Sci

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In this study, a selective sorbent was fabricated by combining a surface molecularly‐imprinted polymer and magnetic kaolin for reliable quantification of thiabendazole (TBZ) coupled with spectrofluorimetry. Several surface characterization methods were conducted to confirm the synthesis of TBZ‐imprinted magnetic kaolin with a polymer thickness of ~48 nm. The molecularly‐imprinted magnetic kaolin (MIP@MKLN) showed high adsorption capacity (8.7 mg/g), remarkable selectivity with an imprinting factor of 3.71 and excellent regeneration ability for up to 10 uses without significant change of its initial adsorption capacity for TBZ. The proposed method had linear range from 5 to 500 μg/mL TBZ concentration with a correlation coefficient of 0.995 and the limit of detection was 1.4 μg/mL. MIP@MKLN was used for selective separation and quantification of TBZ in orange and lemon samples. There were high recovery values ranging from 96.4% to 100.2% with lower relative standard deviations (less than 5%) in the spiked samples under optimized conditions. Overall, the proposed method based on MIP@MKLN as an excellent sorbent could produce a feasible, convenient, and promising method for rapid, selective, and sensitive quantification of TBZ in real samples.

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Section: Resultsmentioning

confidence: 78%

“…The results underscore that the presence of selective binding sites on MIP@MKLN contributes to both enhanced binding affinity and accelerated mass transfer for TBZ in comparison to NIP@MKLN. 37…”

Section: Adsorption Kineticsmentioning

confidence: 99%

Preparation of surface molecularly‐imprinted magnetic kaolin for selective separation and determination of thiabendazole

Zengin

2024

J of Applied Polymer Sci

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“…Analytical methods applied for MIP extraction are focused mainly on four families of the most-used emerging pollutants: organic UV filters (benzophenone), preservatives (parabens), antimicrobials (triclosan and triclocarban), and musks (musk ketone, amongst others) [26]. An overview of methods for the analysis of cosmetic samples, such as creams, shampoos, bath lotions, toothpaste, and body lotion, is documented Table S1 (Supplementary Material) [27][28][29][30][31][32][33][34][35][36][37]. MIPs are applied as selective adsorbents for SPE in conventional column form, microextractions, MSPD, or magnetic MIP extraction.…”

Section: Introductionmentioning

confidence: 99%

The Application of Pipette-Tip and Magnetic Dummy-Template Molecularly Imprinted Solid-Phase Extraction Coupled with High-Performance Liquid Chromatography with Diode Array and Spectrofluorimetric Detection for the Determination of Coumarins in Cosmetic Samples

Špačková,

Hroboňová,

Jablonský

2024

Processes

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In this study, adsorbents based on molecularly imprinted polymers (MIPs) in two solid-phase extraction application forms, pipette tip and magnetic extraction, were used for the selective extraction of coumarins. The pipette-tip solid-phase extraction reduced solvent volumes; the magnetic MIP extraction was simple and effective for phase separation. Parameters affecting extraction, such as the amount of adsorbent, type of washing solvent, volume of the elution solvent, and extraction times for magnetic extraction, were optimized. The MIP-based adsorbents displayed high selectivity and extraction efficiency, resulting in recoveries ranging from 70.3 to 102.0% (RSD % less than 5.5%) for five coumarins under study, 6,7-dihydroxycoumarin-6-β-D-glucoside, coumarin, 7-methoxycoumarin, 6-methylcoumarin, and dicoumarol. The extracts were analyzed by high-performance liquid chromatography with diode array (DAD) and fluorescence (FLD) detectors, reaching limits of quantification of 0.5 and 0.9 µg·mL−1 for coumarin and dicoumarol detected by DAD and 0.001–0.012 µg·mL−1 for the other prohibited simple coumarins when used as a fragrance (detected by FLD). The proposed method was validated and its applicability was shown for the analysis of cosmetic samples like shower gel and perfume.

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Reusable magnetic molecular imprinted polymers based on magnetic graphene oxide for selective identification and detection of eugenol in environmental water samples

Sha,

Wu,

Dai

et al. 2024

ANAL. SCI.

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Magnetic molecularly imprinted polymer combined with solid-phase extraction for detection of kojic acid in cosmetic products

Cited by 12 publications

References 47 publications

Preparation of surface molecularly‐imprinted magnetic kaolin for selective separation and determination of thiabendazole

Preparation of surface molecularly‐imprinted magnetic kaolin for selective separation and determination of thiabendazole

The Application of Pipette-Tip and Magnetic Dummy-Template Molecularly Imprinted Solid-Phase Extraction Coupled with High-Performance Liquid Chromatography with Diode Array and Spectrofluorimetric Detection for the Determination of Coumarins in Cosmetic Samples

Reusable magnetic molecular imprinted polymers based on magnetic graphene oxide for selective identification and detection of eugenol in environmental water samples

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