In:
Analytical Methods, Royal Society of Chemistry (RSC), Vol. 15, No. 7 ( 2023), p. 925-936
Abstract:
In this study, 3-carboxyphenylboronic acid (CP)-functionalized amino-modified Fe 3 O 4 (Fe 3 O 4 @NH 2 -CP, FNC) magnetic molecularly imprinted polymers (FNC@MIPs) were synthesized and applied for the quick identification and selective separation of luteolin (LTL). The structure and morphology were characterized in detail by Fourier transform-infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), dynamic light scattering (DLS), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), thermogravimetric analysis (TGA), and vibrating specimen magnetometry (VSM) methods. The FNC@MIPs had a homogeneous shape, excellent magnetic characteristics, quick binding kinetics, a high adsorption capacity, acceptable selectivity, and stable reusability. The solid-phase extraction parameters and preparation conditions were both optimized. Under optimized conditions, the maximal adsorption capacity was 14.26 mg g −1 and the imprinting factor was 3.62. Furthermore, the experimental kinetics data were best fitted with the pseudo-first-order model ( R 2 = 0.9877), and the Langmuir model could describe the adsorption process ( R 2 = 0.9979), suggesting a monolayer covering. The practical application of the sorbent for LTL detection in Lonicera japonica Thunb samples showed recoveries in the range of 84.5–108.7%. Therefore, the strategy offers a fresh avenue for the extraction and purification of LTL.
Type of Medium:
Online Resource
ISSN:
1759-9660
,
1759-9679
Language:
English
Publisher:
Royal Society of Chemistry (RSC)
Publication Date:
2023
detail.hit.zdb_id:
2515210-5
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