Fluorescent boronic acid polymer grafted on silica particles for affinity separation of saccharides
作者：
Xu, Zhifeng;Uddin, Khan Mohammad Ahsan;Kamra, Tripta;Schnadt, Joachim;Ye, Lei*
期刊：
ACS Applied Materials & Interfaces ,2014年6(3):1406-1414 ISSN：1944-8244
通讯作者：
Ye, Lei
作者机构：
[Uddin, Khan Mohammad Ahsan; Kamra, Tripta; Xu, Zhifeng; Ye, Lei] Lund Univ, Div Pure & Appl Biochem, S-22100 Lund, Sweden.;[Xu, Zhifeng] Hengyang Normal Univ, Dept Chem & Mat Sci, Hengyang 421008, Hunan, Peoples R China.;[Xu, Zhifeng] Coll Hunan Prov, Key Lab Funct Organometall Mat, Hengyang 421008, Hunan, Peoples R China.;[Kamra, Tripta; Schnadt, Joachim] Lund Univ, Div Synchrotron Radiat Res, S-22100 Lund, Sweden.;[Ye, Lei] Lund Univ, Div Pure & Appl Biochem, Box 124, S-22100 Lund, Sweden.
通讯机构：
[Ye, Lei] L;Lund Univ, Div Pure & Appl Biochem, Box 124, S-22100 Lund, Sweden.
关键词：
boronic acid;click chemistry;affinity separation;atom transfer radical polymerization;molecular recognition
摘要：
Boronic acid affinity gels are important for effective separation of biological active cis-diols, and are finding applications both in biotech industry and in biomedical research areas. To increase the efficacy of boronate affinity separation, it is interesting to introduce repeating boronic acid units in flexible polymer chains attached on solid materials. In this work, we synthesize polymer brushes containing boronic acid repeating units on silica gels using surface-initiated atom transfer radical polymerization (ATRP). A fluorescent boronic acid monomer is first prepared from an azide-tagged fluorogenic boronic acid and an alkyne-containing acrylate by Cu(I)-catalyzed 1,3-dipolar cycloaddition reaction (the CuAAC click chemistry). The boronic acid monomer is then grafted to the surface of silica gel modified with an ATRP initiator. The obtained composite material contains boronic acid polymer brushes on surface and shows favorable saccharide binding capability under physiological pH conditions, and displays interesting fluorescence intensity change upon binding fructose and glucose. In addition to saccharide binding, the flexible polymer brushes on silica also enable fast separation of a model glycoprotein based on selective boronate affinity interaction. The synthetic approach and the composite functional material developed in this work should open new opportunities for high efficiency detection, separation, and analysis of not only simple saccharides, but also glycopeptides and large glycoproteins. © 2014 American Chemical Society.
语种：
英文
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Acetylene black paste electrode modified with graphene as the voltammetric sensor for selective determination of tryptophan in the presence of high concentrations of tyrosine
作者：
Deng, Peihong* ;Xu, Zhifeng;Feng, Yonglan
期刊：
Materials Science and Engineering C: Materials for Biological Applications ,2014年35(1):54-60 ISSN：0928-4931
通讯作者：
Deng, Peihong
作者机构：
[Deng, Peihong; Xu, Zhifeng; Feng, Yonglan] Hengyang Normal Univ, Dept Chem & Mat Sci, Hengyang 421008, Hunan, Peoples R China.
通讯机构：
[Deng, Peihong] H;Hengyang Normal Univ, Dept Chem & Mat Sci, Hengyang 421008, Hunan, Peoples R China.
关键词：
Graphene;Carbon black;Tryptophan;Tyrosine;Selective determination;Voltammetric sensors
摘要：
A reliable sensor was fabricated by modifying an acetylene black paste electrode with graphene (denoted as GR/ABPE) for sensitive and selective determination of tryptophan (Trp). Due to the high sorption ability, large surface area and numerous active sites, the GR/ABPE showed a strong enhancement effect on the oxidation of Trp, and greatly increased the peak current. The parameters affecting the Trp determination were investigated. In 1.0 M H <inf>2</inf>SO<inf>4</inf> the voltammetric responses of Trp and tyrosine (Tyr) were well separated into two distinct peaks with peak potential difference (ΔE<inf>pa</inf>) of 115 mV. Under the optimized conditions, in the presence of 0.1 mM Tyr, the oxidation peak current of Trp was proportional to its concentration in the range between 0.1 μM and 0.1 mM, with the limit of detection of 60 nM (S/N = 3). The GR/ABPE was applied to the direct detection of Trp in pharmaceutical and biological samples with satisfactory results. This work provides a simple and easy approach to selective detection of Trp in the presence of Tyr. ©2013 Elsevier B.V.
语种：
英文
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以创新能力培养为核心构建多元化实践教学体系
作者：
刘梦琴;邝代治;冯泳兰;张复兴;王剑秋;...
期刊：
实验室研究与探索 ,2014年33(3):189-193 ISSN：1006-7167
作者机构：
衡阳师范学院化学与材料科学系,功能金属有机材料湖南省重点实验室,湖南衡阳421008
关键词：
创新能力;实践教学体系;化学及其相关专业
摘要：
针对地方院校化学及其相关专业实验条件和实验设施相对落后的现状,从本世纪初起,在实践教学体系、实践教学内涵建设及社会应用型创新人才培养方面进行了深入的改革,搭建了完善、科学的绩效化实践教学质量保证体系,构建了化学及其相关专业,基于学生创新能力培养的多元化实践教学体系,在课程建设、教材建设和人才培养方面取得了丰硕的成果。
语种：
中文
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Preparation of 2D molecularly imprinted materials based on mesoporous silicas via click reaction
作者：
Xu, Zhifeng* ;Deng, Peihong;Tang, Siping;Kuang, Daizhi;Zhang, Fuxing;...
期刊：
JOURNAL OF MATERIALS CHEMISTRY B ,2014年2(47):8418-8426 ISSN：2050-750X
通讯作者：
Xu, Zhifeng
作者机构：
[Tang, Siping; Deng, Peihong; Xu, Zhifeng; Li, Junhua; Zhang, Fuxing; Kuang, Daizhi] Hengyang Normal Univ, Dept Chem & Mat Sci, Coll Hunan Prov, Key Lab Funct Organometall Mat, Hengyang 421008, Peoples R China.
通讯机构：
[Xu, Zhifeng] H;Hengyang Normal Univ, Dept Chem & Mat Sci, Coll Hunan Prov, Key Lab Funct Organometall Mat, Hengyang 421008, Peoples R China.
摘要：
The two-dimensional (2D) molecular imprinting approach has attracted extensive research interest in recent years due to its potential advantages such as simple construction, fast template removal and rapid mass transfer. In this study, a new 2D imprinting approach based on the combination of mesoporous silica materials and molecular imprinting technology is reported. 2D molecularly imprinted materials (MIMs) for cholesterol were prepared by using cholesterol as the template, azide modified β-cyclodextrin (azide-β-CD) as the functional monomer and alkynyl-modified SBA-15 (alkyne-SBA-15) as the skeleton. In this method, azide-β-CD molecules were first assembled around the templates by formation of template-monomer complexes, and thus the mutual positions of azide-β-CD molecules were fixed. Then, azide-β-CD molecules were anchored to the walls of the nano-pores of SBA-15 via click chemistry. After removal of the template molecules, the resulting cavities, i.e., recognition sites were formed in the nano-pores of mesoporous silicas. The synthesized MIM was characterized by FT-IR, X-ray diffraction (XRD), elemental analysis (EA), thermal gravimetric analysis (TGA), scanning electron microscopy (SEM) and so on. Binding kinetic experiments demonstrated that the 2D imprinting approach can improve site accessibility for the template effectively. The 2D MIM exhibited binding affinity and specificity for the template, as revealed by equilibrium binding experiments. When using MIM as a stationary phase for HPLC, baseline separation of cholesterol from other compounds can be achieved. In addition, the use of 2D imprinting significantly reduced the peak broadening and tailing. This journal is ©The Royal Society of Chemistry.
语种：
英文
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双[三(2-甲基-2-苯基丙基)锡]二元羧酸酯及制备方法与应用
发明/设计人：
邝代治;冯泳兰;张复兴;朱小明;蒋伍玖;...
申请/专利权人：
衡阳师范学院
申请/专利号：
CN201310309022.1
申请时间：
2013-7-22
公开号：
CN103509046A
公开时间：
2014-01-15
主申请人地址：
421008 湖南省衡阳市雁峰区黄白路165号
摘要：
本发明公开的双[三(2-甲基-2-苯基丙基)锡]二元羧酸酯，其特征在于，为如下结构式（I）化合物，其中：n＝3、4、5或6。本发明还公开了该双[三(2-甲基-2-苯基丙基)锡]二元羧酸酯的制备方法和和在治疗肿瘤药物中的应用。
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三环己基锡含芳基有机酸酯类化合物及制备方法与应用
发明/设计人：
冯泳兰;邝代治;张复兴;蒋伍玖;庾江喜;...
申请/专利权人：
衡阳师范学院
申请/专利号：
CN201310384240.1
申请时间：
2013-11-10
公开号：
CN103554170A
公开时间：
2014-02-05
主申请人地址：
421008 湖南省衡阳市雁峰区黄白路165号
摘要：
本发明公开的三环己基锡含芳基有机酸酯类化合物，其中为如下结构式（I）或结构式（Ⅱ）的化合物，其中：结构式（I）中，Cy为环己基，R=-(CH2)2C8N1H6、-C14H9、-CHPh2、或-(p-NH2C6H4)；结构式（Ⅱ）中：Cy为环己基，R=-CH=CHPh。本发明还公开了该三环己基锡含芳基有机酸酯类化合物的制备方法以及在在制备抗肿瘤药物中的应用。
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Simultaneous voltammetric determination of 2-nitrophenol and 4-nitrophenol based on an acetylene black paste electrode modified with a graphene-chitosan composite
作者：
Deng, Peihong* ;Xu, Zhifeng;Li, Junhua
期刊：
Microchimica Acta ,2014年181(9-10):1077-1084 ISSN：0026-3672
通讯作者：
Deng, Peihong
作者机构：
[Deng, Peihong; Xu, Zhifeng; Li, Junhua] Hengyang Normal Univ, Dept Chem & Mat Sci, Hengyang 421008, Hunan, Peoples R China.
通讯机构：
[Deng, Peihong] H;Hengyang Normal Univ, Dept Chem & Mat Sci, Hengyang 421008, Hunan, Peoples R China.
关键词：
2-nitrophenol, 4-nitrophenol;Acetylene black;Chitosan;Graphene;Simultaneous determination
摘要：
We describe a simple and sensitive voltammetric method for the simultaneous determination of 2-nitrophenol and 4-nitrophenol. It is based on the use of an acetylene black paste electrode modified with a graphene-chitosan composite film (denoted as Gr-Chit/ABPE). The reduction peak currents of 2-nitrophenol (at -252 mV) and of 4-nitrophenol (at -340 mV) in pH 1.0 solution increase significantly at the Gr-Chit/ABPE in comparison to a bare ABPE. Factors affecting sensitivity were optimized and a linear relationship is found between peak current and the concentrations of 2-nitrophenol (in the 0.4 μM to 80 μM range) and for 4-nitrophenol (in the 0.1 μM to 80 μM range). The detection limits (at an SNR of 3 and after a 30-s accumulation time) are 200 nM for 2-nitrophenol and 80 nM for 4-nitrophenol, respectively. The modified electrode was successfully applied to the direct and parallel determination of 2-nitrophenol and 4-nitrophenol in spiked water samples. [Figure not available: see fulltext.] © 2014 Springer-Verlag Wien.
语种：
英文
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三丁基锡有机酸酯配位聚合物及制备方法与应用
发明/设计人：
庾江喜;邝代治;冯泳兰;张复兴;蒋伍玖;...
申请/专利权人：
衡阳师范学院
申请/专利号：
CN201310384337.2
申请时间：
2013-8-29
公开号：
CN103483374A
公开时间：
2014-01-01
主申请人地址：
421008 湖南省衡阳市雁峰区黄白路165号
摘要：
本发明公开的三丁基锡有机酸酯，为如下结构式（I）的配位聚合物，其中Bu为正丁基；R=-CH2C10H7或-CH=CHPh。本发明还公开了该三丁基锡有机酸酯的制备方法以及在制备抗肿瘤药物中的应用。
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β-环糊精绿色催化环氧化合物立体选择性开环
作者：
唐斯萍;冯泳兰;邝代治;张复兴;许志锋
作者机构：
[唐斯萍; 冯泳兰; 邝代治; 张复兴; 许志锋] 衡阳师范学院 衡阳 421008;[唐斯萍; 冯泳兰; 邝代治; 张复兴; 许志锋] 湖南省教育厅功能金属材料重点实验室 衡阳 421008
会议名称：
中国化学会第八届有机化学学术会议暨首届重庆有机化学国际研讨会
会议时间：
2013-10-17
会议地点：
重庆
会议主办单位：
中国化学会;重庆市科协
会议论文集名称：
中国化学会第八届有机化学学术会议暨首届重庆有机化学国际研讨会论文集
关键词：
环氧化物;选择性开环;环糊精
摘要：
氧杂环丙烷类化合物易受到亲核试剂进攻而生成的开环产物是有机合成反应的重要中间体.如β-羟基氰和羟基胺就是非天然氨基酸,β-肾上腺素抑制剂,手性辅助剂等具有生物活性化合物的重要反应中间体原料,氰基是氨基和羧基的前体.将氧杂环丙烷开环生成相应的醇一直是大家研究的热点.合成这种醇、胺的传统方法就是用亲核试剂如氰化物[1],酚盐[2],胺[3],卤化物[4],硫醇[5]等.而传统的合成方法的缺点:反应条件
语种：
中文
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Boronic Acid Terminated Thermo-Responsive and Fluorogenic Polymer for Affinity Separation
作者：
Zhifeng Xu;Khan Mohammad Ahsan Uddin;Lei Ye
作者机构：
[Zhifeng Xu; Khan Mohammad Ahsan Uddin; Lei Ye] Division of Pure and Applied Biochemistry,Lund University,Box 124,221 00 Lund,Sweden;[Zhifeng Xu] Department of Chemistry and Material Science,Hengyang Normal University;[Zhifeng Xu] Key Laboratory of Functional Organometallic Materials,College of Hunan Province,Hengyang,Hunan 421008,China
会议名称：
2nd International congress on advanced materials(AM2013)第二届国际先进材料会议
会议时间：
2013-5-16
会议地点：
江苏镇江
会议主办单位：
中国先进材料学会;江苏大学
会议论文集名称：
2nd International congress on advanced materials(AM2013)第二届国际先进材料会议论文集
摘要：
<正>As illustrated in Scheme 1, the alkyne-functionalized ATRP initiator, propargyl-2-bromo-2-methylpropionamide (BMP) was synthesized through the reaction between propargyl amine and 2-bromo-2-methylp
语种：
英文
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湖南省常宁市铅锌产业现状与发展对策
作者：
邓培红;张复兴;张春华;许志锋
期刊：
湖南工程学院学报(社会科学版) ,2013年23(02):9-12 ISSN：1671-1181
作者机构：
衡阳师范学院化学与材料科学系,湖南衡阳,421008;[邓培红; 张复兴; 许志锋; 张春华] 衡阳师范学院
关键词：
常宁市;铅锌产业;现状;对策;可持续发展
摘要：
湖南省常宁市具备发展铅锌产业的良好条件.常宁市铅锌产业发展虽然成绩显著,但是长期以来存在的一些问题成为制约其协调发展的重要因素.通过阐述常宁市铅锌产业的发展现状,分析目前常宁市铅锌产业发展的优势与不足,对常宁市铅锌产业发展提出了合理的对策,通过发展循环经济、优化产业、产品结构,加强环境保护,重视再生资源的回收和利用、加大技术创新和科技开发的力度、加强产学研合作等措施,推进常宁市铅锌产业持续高速发展.
语种：
中文
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Fluorogenic molecularly imprinted polymers with double recognition abilities synthesized via click chemistry
作者：
Xu, Zhifeng* ;Kuang, Daizhi;Zhang, Fuxing;Tang, Siping;Deng, Peihong;...
期刊：
JOURNAL OF MATERIALS CHEMISTRY B ,2013年1(13):1852-1859 ISSN：2050-750X
通讯作者：
Xu, Zhifeng
作者机构：
[Tang, Siping; Deng, Peihong; Xu, Zhifeng; Li, Junhua; Zhang, Fuxing; Kuang, Daizhi] Hengyang Normal Univ, Coll Hunan Prov, Key Lab Funct Organometall Mat, Dept Chem & Mat Sci, Hengyang 421008, Peoples R China.
通讯机构：
[Xu, Zhifeng] H;Hengyang Normal Univ, Coll Hunan Prov, Key Lab Funct Organometall Mat, Dept Chem & Mat Sci, Hengyang 421008, Peoples R China.
摘要：
This paper reports a new strategy for the preparation of molecularly imprinted polymer (MIP) based composite materials with double recognition abilities through the exploitation of click chemistry. Combining the inherent molecular recognition ability of MIPs and the affinity binding ability of boronic acid ligands for saccharides, a boronic acid-attached MIP with double recognition abilities was prepared. An alkyne modified 2,4-dichlorophenoxyacetic acid (2,4-D) imprinted polymer was first synthesized using a two-stage precipitation polymerization. An azide-contained boronic acid was then linked to the clickable 2,4-D imprinted polymers through copper-catalyzed azide-alkyne cycloaddition (CuAAC). The boronic acid-attached MIPs displayed recognition ability for 2,4-D and affinity binding ability for saccharides at physiological pH. The intensity of fluorescence emission of the boronic acid-attached MIPs was found to increase when increasing amounts of a cis-diol compound (i.e., fructose) were added. ©The Royal Society of Chemistry 2013.
语种：
英文
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一苄基锡芳香醛缩芳胺Schiff 碱配合物及制备方法与应用
发明/设计人：
庾江喜;邝代治;冯泳兰;张复兴;蒋伍玖;...
申请/专利权人：
衡阳师范学院
申请/专利号：
CN201310309235.4
申请时间：
2013-7-22
公开号：
CN103360423A
公开时间：
2013-10-23
主申请人地址：
421008 湖南省衡阳市雁峰区黄白路165号
摘要：
本发明公开的一苄基锡芳香醛缩芳胺Schiff碱配合物，为如下结构式（I）的配合物，其中，R1为-OCH3或Cl，R2为-H或-Cl，R3为-NO2或-H。本发明还公开了该一苄基锡芳香醛缩芳胺Schiff碱配合物的制备方法和和在治疗肿瘤药物中的应用。
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一种梯形结构的二丁基锡胡椒酸酯及制备方法与应用
发明/设计人：
冯泳兰;邝代治;庾江喜;张复兴;蒋伍玖;...
申请/专利权人：
衡阳师范学院
申请/专利号：
CN201310239782.X
申请时间：
2013-6-17
公开号：
CN103275115A
公开时间：
2013-09-04
主申请人地址：
421008 湖南省衡阳市雁峰区黄白路165号
摘要：
本发明公开的一种梯形结构的二丁基锡胡椒酸酯，其为如下结构式（1）的化合物，其中：R表示正丁基。本发明还公开了该梯形结构的二丁基锡胡椒酸酯的制备方法。本发明的一种梯形结构的二丁基锡胡椒酸酯具有较好的抗癌活性，可以其为原料制备抗肝癌、抗鼻咽癌、抗乳腺癌、抗肺癌、抗结肠癌药物。与目前普遍使用的铂类抗癌药物相比，本发明的一种梯形结构的二丁基锡胡椒酸酯具有抗癌活性高、成本低、制备方法简单等特点，为开发抗癌药物提供了新途径。
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一种大环结构的三丁基锡9-蒽甲酸酯及制备方法与应用
发明/设计人：
邝代治;冯泳兰;庾江喜;蒋伍玖;张复兴;...
申请/专利权人：
衡阳师范学院
申请/专利号：
CN201310406293.9
申请时间：
2013-9-9
公开号：
CN103467511A
公开时间：
2013-12-25
主申请人地址：
421008 湖南省衡阳市雁峰区黄白路165号
摘要：
本发明公开的一种大环结构的三丁基锡9-蒽甲酸酯，为如下结构式（1）的化合物，其中Bu为正丁基，R为-C14H9(9-蒽基)。本发明还公开了该大环结构的三丁基锡9-蒽甲酸酯制备方法以及在制备抗肿瘤药物中的应用。
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DNA binding and oxidative cleavage studies of mixed-ligand copper(II) complex
作者：
Tang, Siping* ;Feng, Yonglan;Xu, Zhifeng;Yang, Yingqun;Wang, Deping
期刊：
Asian Journal of Chemistry ,2013年25(16):9237-9240 ISSN：0970-7077
通讯作者：
Tang, Siping
作者机构：
[Tang, Siping; Yang, Yingqun; Xu, Zhifeng; Feng, Yonglan; Wang, Deping] Hengyang Normal Univ, Dept Chem & Mat Sci, Hengyang 421008, Hunan, Peoples R China.;[Tang, Siping; Yang, Yingqun; Xu, Zhifeng; Feng, Yonglan; Wang, Deping] Hengyang Normal Univ, Coll Hunan Prov, Key Lab Funct Organometall Mat, Hengyang 421008, Hunan, Peoples R China.
通讯机构：
[Tang, Siping] H;Hengyang Normal Univ, Dept Chem & Mat Sci, Hengyang 421008, Hunan, Peoples R China.
关键词：
DNA binding;Mixed-ligand copper(II) complex;Nuclease activity
摘要：
A mixed-ligand copper(II) complex ((4'-ferrocenyl-2,2':6',2''-terpyridine- k3,N',N'') (1,1'-phenanthroline-k2N,N')-copper(II) bis(perchlorate)) has been synthesized. Binding interactions of the complex with calf thymus DNA (CT-DNA) were investigated by UV-visible and CD spectroscopies. Results show that the copper complex mainly adopt electrostatic attraction binding mode with DNA and the binding constant is (3.22 ± 0.05) × 103 mol-1 L. The complex shows appreciable chemical nuclease activity in the presence of ascorbic acid. The DNA cleavage by the complex were inhibited strongly in the presence of DMSO and tert-butyl alcohol, which suggests that hydroxyl radicals are reactive oxygen species for the cleavage.
语种：
英文
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地方师范院校有机化学课程问卷调查与分析
作者：
王德平;张复兴;许志锋
期刊：
广东化工 ,2013年40(19):179-180 ISSN：1007-1865
作者机构：
衡阳师范学院 化学与材料科学系,湖南衡阳,421008
关键词：
地方师范院校;有机化学;问卷调查
摘要：
文章对我校化学与材料科学系有机化学课程的教学情况进行问卷调查,对存在的问题提出相应的改正措施,以提升教学质量.
语种：
中文
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一丁基锡取代水杨醛缩芳胺Schiff 碱配合物及制备方法与应用
发明/设计人：
冯泳兰;邝代治;蒋伍玖;张复兴;庾江喜;...
申请/专利权人：
衡阳师范学院
申请/专利号：
CN201310308409.5
申请时间：
2013-7-22
公开号：
CN103396436A
公开时间：
2013-11-20
主申请人地址：
421008 湖南省衡阳市雁峰区黄白路165号
摘要：
本发明公开的一丁基锡取代水杨醛缩芳胺Schiff碱配合物，其为如下结构式（I）的配合物，其中Bu代表正丁基,R1为-H、-Cl或-Br，R2为-H或-N(CH2CH3)2，R3为-H、-Cl或-Br，R4为-H、-Cl、-NO2或-Me。本发明还公开了一丁基锡取代水杨醛缩芳胺Schiff碱配合物的制备方法和和在治疗肿瘤药物中的应用。
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Simultaneous determination of ascorbic acid and rutin in pharmaceutical preparations with electrochemical method based on multi-walled carbon nanotubes–chitosan composite film modified electrode
作者：
Deng, Peihong* ;Xu, Zhifeng;Li, Junhua
期刊：
Journal of Pharmaceutical and Biomedical Analysis ,2013年76(6):234-242 ISSN：0731-7085
通讯作者：
Deng, Peihong
作者机构：
[Deng, Peihong; Xu, Zhifeng; Li, Junhua] Hengyang Normal Univ, Dept Chem & Mat Sci, Hengyang 421008, Hunan, Peoples R China.
通讯机构：
[Deng, Peihong] H;Hengyang Normal Univ, Dept Chem & Mat Sci, Hengyang 421008, Hunan, Peoples R China.
关键词：
Ascorbic acid;Electrochemical method;Multi-walled carbon nanotube-chitosan composite film;Rutin;Simultaneous detection
摘要：
In this paper, the simultaneous voltammetric determination of ascorbic acid (AA) and rutin (Ru) has been achieved at an acetylene black paste electrode modified with multi-walled carbon nanotubes-chitosan composite film (denoted as MWCNTs-CHIT/ABPE). Compared with bare electrode, the peak currents of AA and Ru at MWCNTs-CHIT/ABPE increased greatly and the anodic peak potential difference (Delta E-pa) between AA and Ru are up to 342 mV, which is undoubtedly attributed to the unique characteristics of AB and MWCNTs such as excellent electric conductivity, high surface area and strong adsorptive abilities, resulting in higher accumulation efficiency to AA and Ru. The influences of some experimental conditions on the oxidation of AA and Ru were tested and the calibration plot was examined. Under the optimized condition, a good linearity was obtained in the concentration range of 1 mu M-0.4 mM for AA in the presence of 10 mu M Ru and 20 nM-10 mu M for Ru in the presence of 1 mM AA. The detection limits (S/N=3) of AA and Ru are 0.8 mu M and 10 nM, respectively. The proposed method was successfully applied to the simultaneous determination of AA and Ru in pharmaceutical samples with reliable recovery. (C) 2013 Elsevier B.V. All rights reserved.
语种：
英文
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Selective separation of deltamethrin by molecularly imprinted polymers using a beta-cyclodextrin derivative as the functional monomer
作者：
Xu, Zhi F.* ;Wen, Ge;Kuang, Dai Z.;Zhang, Fu X.;Tang, Si P.
期刊：
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART B-PESTICIDES FOOD CONTAMINANTS AND AGRICULTURAL WASTES ,2013年48(5):336-343 ISSN：0360-1234
通讯作者：
Xu, Zhi F.
作者机构：
[Xu, Zhi F.; Tang, Si P.; Kuang, Dai Z.; Zhang, Fu X.] Hengyang Normal Univ, Dept Chem & Mat Sci, Key Lab Funct Organometall Mat, Coll Hunan Prov, Hengyang 421008, Peoples R China.;[Wen, Ge] Hengyang Chinese Med Corp Ltd, Unisplendour Guhan Grp, Hengyang, Peoples R China.;[Xu, Zhi F.] Hengyang Normal Univ, Dept Chem & Mat Sci, 165 Huangbai Rd, Hengyang 421008, Peoples R China.
通讯机构：
[Xu, Zhi F.] H;Hengyang Normal Univ, Dept Chem & Mat Sci, 165 Huangbai Rd, Hengyang 421008, Peoples R China.
关键词：
Deltamethrin;Molecular imprinting;Molecular recognition;Solid phase extraction;β-cyclodextrin
摘要：
A deltamethrin-imprinted polymer (MIP<inf>1</inf>) was prepared using bis(-6-O-butanediacid monoester)-β-cyclodextrin (BBA-β-CD) as the functional monomer and toluene 2,4-diisocyanate (TDI) as the cross-linker. In comparison to the molecularly imprinted polymer where β-CD was applied as the functional monomer (MIP<inf>2</inf>), MIP<inf>1</inf> showed a higher specific binding capacity (ΔC<inf>P</inf>) and an improved imprinting factor (IF) for deltamethrin. The selective recognition experiments demonstrated that compared to MIP<inf>2</inf>, MIP<inf>1</inf> could better recognize its template over other substrates that had similar chemical structures. The solid phase extraction (SPE) of deltamethrin using MIP<inf>1</inf> as the adsorbent was further investigated. The recoveries of themolecularly imprinted solid phase extraction (MISPE) column for deltamethrin were 83.2-93.4% with relative standard deviations (RSD) of 2.03-6.19%. The method has been successfully applied to the enrichment of trace deltamethrin from real water samples. ©Taylor &Francis Group, LLC.
语种：
英文
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