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题名:
Reporter-Free Potentiometric Sensing of Boronic Acids and Their Reactions by Using Quaternary Ammonium Salt-Functionalized Polymeric Liquid Membranes
其他题名: Toxicity of single-walled carbon nanotubes on green microalga Chromochloris zofingiensis.pdf
作者: Wang, Xuewei1,2,3; Yue, Dengfeng4; Lv, Enguang1,2; Wu, Lei1,2; Wei Qin(秦伟)1,2
刊名: ANALYTICAL CHEMISTRY
ISSN号: 0003-2700
出版日期: 2014-02-18
卷号: 86, 期号:4, 页码:1927-1931
关键词: PHENYLBORONIC ACID ; AFFINITY-CHROMATOGRAPHY ; ION ; RECOGNITION ; ELECTRODES ; DIOL ; ESTERIFICATION ; COMPLEXATION ; SACCHARIDES ; DERIVATIVES
学科分类: Chemistry, Analytical
产权排序: [Wang, Xuewei; Lv, Enguang; Wu, Lei; Qin, Wei] Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China; [Wang, Xuewei; Lv, Enguang; Wu, Lei; Qin, Wei] YICCAS, Shandong Prov Key Lab Coastal Environm Proc, Yantai 264003, Shandong, Peoples R China; [Wang, Xuewei] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China; [Yue, Dengfeng] Yantai Univ, Coll Chem & Chem Engn, Yantai 264003, Shandong, Peoples R China
通讯作者: Qin, W (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China. wqin@yic.ac.cn
中文摘要: The tremendous applications of boronic acids (BAs) in chemical sensing, medical chemistry, molecular assembly, and organic synthesis lead to an urgent demand for developing effective sensing methods for BAs. This paper reports a facile and sensitive potentiometric sensor scheme for heterogeneous detection of BAs based on their unexpected potential responses on quaternary ammonium salt-doped polymeric liquid membranes. B-11 NMR data reveal that a quaternary ammonium chloride can trigger the hydrolysis of an electrically neutral BA in an aprotic solvent. Using the quaternary ammonium salt as the receptor, the BA molecules can be extracted from the sample solution into the polymeric membrane phase and undergo the concomitant hydrolysis. Such salt-triggered hydrolysis generates H+ ions, which can be coejected into the aqueous phase with the counterions (e.g., Cl-) owing to their high hydrophilicities. The perturbation on the ionic partition at the sample-membrane interface changes the phase boundary potential and thus enables the potentiometric sensing of BAs. In contrast to other transduction methods for BAs, for which labeled or separate reporters are exclusively required, the present heterogeneous sensing scheme allows the direct detection of BAs without using any reporter molecules. This technique shows superior detection limits for BAs (e.g., 1.0 x 10(-6) M for phenylboronic acid) as compared to previously reported methods based on colorimetry, fluorimetry, and mass spectrometry. The proposed sensing strategy has also been successfully applied to potentiometric indication of the BA reactions with hydrogen peroxide and saccharides, which allows indirect and sensitive detection of these important species.
英文摘要: The tremendous applications of boronic acids (BAs) in chemical sensing, medical chemistry, molecular assembly, and organic synthesis lead to an urgent demand for developing effective sensing methods for BAs. This paper reports a facile and sensitive potentiometric sensor scheme for heterogeneous detection of BAs based on their unexpected potential responses on quaternary ammonium salt-doped polymeric liquid membranes. B-11 NMR data reveal that a quaternary ammonium chloride can trigger the hydrolysis of an electrically neutral BA in an aprotic solvent. Using the quaternary ammonium salt as the receptor, the BA molecules can be extracted from the sample solution into the polymeric membrane phase and undergo the concomitant hydrolysis. Such salt-triggered hydrolysis generates H+ ions, which can be coejected into the aqueous phase with the counterions (e.g., Cl-) owing to their high hydrophilicities. The perturbation on the ionic partition at the sample-membrane interface changes the phase boundary potential and thus enables the potentiometric sensing of BAs. In contrast to other transduction methods for BAs, for which labeled or separate reporters are exclusively required, the present heterogeneous sensing scheme allows the direct detection of BAs without using any reporter molecules. This technique shows superior detection limits for BAs (e.g., 1.0 x 10(-6) M for phenylboronic acid) as compared to previously reported methods based on colorimetry, fluorimetry, and mass spectrometry. The proposed sensing strategy has also been successfully applied to potentiometric indication of the BA reactions with hydrogen peroxide and saccharides, which allows indirect and sensitive detection of these important species.
研究领域[WOS]: Chemistry
关键词[WOS]: PHENYLBORONIC ACID ; AFFINITY-CHROMATOGRAPHY ; ION ; RECOGNITION ; ELECTRODES ; DIOL ; ESTERIFICATION ; COMPLEXATION ; SACCHARIDES ; DERIVATIVES
文章类型: Article
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000331775600001
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.yic.ac.cn/handle/133337/6903
Appears in Collections:中科院海岸带环境过程与生态修复重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China
2.YICCAS, Shandong Prov Key Lab Coastal Environm Proc, Yantai 264003, Shandong, Peoples R China
3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
4.Yantai Univ, Coll Chem & Chem Engn, Yantai 264003, Shandong, Peoples R China

Recommended Citation:
Wang, Xuewei,Yue, Dengfeng,Lv, Enguang,et al. Reporter-Free Potentiometric Sensing of Boronic Acids and Their Reactions by Using Quaternary Ammonium Salt-Functionalized Polymeric Liquid Membranes[J]. ANALYTICAL CHEMISTRY,2014,86(4):1927-1931.
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