A selective resonance Rayleigh scattering method for determination of iodine by graphene oxide surface molecularly imprinted polyacrylamide probe

IF 4.3 2区化学 Q1 SPECTROSCOPY

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy Pub Date : 2024-11-03 DOI:10.1016/j.saa.2024.125389

Xiaoying Huang , Yumei Li , Qianmiao Chen , Aihui Liang , Zhiliang Jiang

引用次数: 0

Abstract

A new graphene oxide nanosurface molecularly imprinted polymer (GO@MIP) probe was synthesized by microwave irradiation, using graphene oxide (GO) as the carrier, iodine as the template molecule, acrylamide as the functional monomer, ethylene glycol dimethacrylate (EGDMA) as the crosslinking agent, azodiisobutyronitrile (AIBN) as the initiator, and acetonitrile as the pore forming agent. The nanoprobe recognizes the iodine, and exhibits significant resonance Rayleigh scattering energy transfer (RRS-ET) effect between iodine as the acceptor and the nanoprobe as donor. When iodine concentration was in the linear range of 0.02–0.5 mmol/L, the decreased RRS intensity was linear to the concentration. And it was used for the determination of iodine in water samples and iodate ions in salt samples.

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利用氧化石墨烯表面分子印迹聚丙烯酰胺探针测定碘的选择性共振瑞利散射法。

以氧化石墨烯（GO）为载体，碘为模板分子，丙烯酰胺为功能单体，乙二醇二甲基丙烯酸酯（EGDMA）为交联剂，偶氮二异丁腈（AIBN）为引发剂，乙腈为成孔剂，通过微波辐照合成了一种新型氧化石墨烯纳米表面分子印迹聚合物（GO@MIP）探针。纳米探针能识别碘，并在作为受体的碘和作为供体的纳米探针之间表现出显著的共振瑞利散射能量转移（RRS-ET）效应。当碘浓度在 0.02-0.5 mmol/L 的线性范围内时，RRS 强度的降低与浓度呈线性关系。该方法可用于测定水样中的碘和盐样中的碘酸根离子。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 物理-光谱学

CiteScore

8.40

自引率

11.40%

发文量

1364

审稿时长

40 days

期刊介绍： Spectrochimica Acta, Part A: Molecular and Biomolecular Spectroscopy (SAA) is an interdisciplinary journal which spans from basic to applied aspects of optical spectroscopy in chemistry, medicine, biology, and materials science. The journal publishes original scientific papers that feature high-quality spectroscopic data and analysis. From the broad range of optical spectroscopies, the emphasis is on electronic, vibrational or rotational spectra of molecules, rather than on spectroscopy based on magnetic moments. Criteria for publication in SAA are novelty, uniqueness, and outstanding quality. Routine applications of spectroscopic techniques and computational methods are not appropriate. Topics of particular interest of Spectrochimica Acta Part A include, but are not limited to: Spectroscopy and dynamics of bioanalytical, biomedical, environmental, and atmospheric sciences, Novel experimental techniques or instrumentation for molecular spectroscopy, Novel theoretical and computational methods, Novel applications in photochemistry and photobiology, Novel interpretational approaches as well as advances in data analysis based on electronic or vibrational spectroscopy.