New voltammetric method for determination of tyrosine in foodstuffs using an oxygen-functionalized multi-walled carbon nanotubes modified acetylene black paste electrode
作者：
Feng, Jinxia;Deng, Peihong* ;Xiao, Jinyun;Li, Junhua;Tian, Yaling;...
期刊：
Journal of Food Composition and Analysis ,2021年96:103708 ISSN：0889-1575
通讯作者：
He, Quanguo;Deng, Peihong
作者机构：
[Li, Guangli; He, Quanguo; Tian, Yaling; Wu, Yiyong; Xiao, Jinyun; Liu, Jun; Feng, Jinxia] Hunan Univ Technol, Sch Life Sci & Chem, Zhuzhou 412007, Peoples R China.;[Tian, Yaling; Deng, Peihong; Wu, Yiyong; Li, Junhua; Xiao, Jinyun; Feng, Jinxia] Hengyang Normal Univ, Dept Chem & Mat Sci, Key Lab Funct Organometall Mat Hunan Prov Univ, Key Lab Funct Metal Organ Cpds Hunan Prov, Hengyang 421008, Peoples R China.
通讯机构：
[He, Quanguo; Deng, Peihong] H;Hunan Univ Technol, Sch Life Sci & Chem, Zhuzhou 412007, Peoples R China.;Hengyang Normal Univ, Dept Chem & Mat Sci, Key Lab Funct Organometall Mat Hunan Prov Univ, Key Lab Funct Metal Organ Cpds Hunan Prov, Hengyang 421008, Peoples R China.
关键词：
Oxygen-functionalized multi-walled carbon nanotubes;Tyrosine;Acetylene black paste electrode;Voltammetric determination
摘要：
In this paper, acetylene black paste electrode (ABPE) was prepared and modified by oxygen-functionalized multi-walled carbon nanotubes (MWCNT-COOH). The fabricated MWCNT-COOH/ABPE was further used for the investigation on the electrochemical behavior of tyrosine by cyclic voltammetry and second-order derivative linear sweep voltammetry. In 0.1 M pH 2.6 phosphate buffer solution, a well-defined anodic peak appeared at 924 mV, which was attributed to the electrooxidation of tyrosine on the modified electrode. The electrochemical parameters of tyrosine on the modified electrode were calculated. Under the optimal conditions, the oxidation peak current of tyrosine varies linearly with its concentration in the range of 0.04−1.0 μ M, 1.0−60 μ M and 60−600 μ M, and the detection limit is 0.02 μM. The MWCNT-COOH/ABPE was applied to the determination of tyrosine in food with satisfactory results. © 2020 Elsevier Inc.
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英文
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Simultaneous and sensitive determination of ascorbic acid, dopamine and uric acid via an electrochemical sensor based on PVP-graphene composite
作者：
Wu, Yiyong;Deng, Peihong* ;Tian, Yaling;Feng, Jinxia;Xiao, Jingyun;...
期刊：
Journal of Nanobiotechnology ,2020年18(1):1-13 ISSN：1477-3155
通讯作者：
He, Quanguo;Deng, Peihong
作者机构：
[Li, Guangli; He, Quanguo; Tian, Yaling; Wu, Yiyong; Liu, Jun; Feng, Jinxia; Xiao, Jingyun] Hunan Univ Technol, Sch Life Sci & Chem, Zhuzhou 412007, Peoples R China.;[Tian, Yaling; Deng, Peihong; Wu, Yiyong; Li, Junhua] Hengyang Normal Univ, Dept Chem & Mat Sci, Key Lab Funct Met Organ Cpds Hunan Prov, Hengyang 421008, Peoples R China.;[Tian, Yaling; Deng, Peihong; Wu, Yiyong; Li, Junhua] Hengyang Normal Univ, Dept Chem & Mat Sci, Key Lab Funct Organometall Mat Hunan Prov Univ, Hengyang 421008, Peoples R China.;[He, Quanguo] Foshan Univ, Sch Mat Sci & Energy Engn, Foshan 528000, Peoples R China.
通讯机构：
[He, Quanguo; Deng, Peihong] H;[He, Quanguo] F;Hunan Univ Technol, Sch Life Sci & Chem, Zhuzhou 412007, Peoples R China.;Hengyang Normal Univ, Dept Chem & Mat Sci, Key Lab Funct Met Organ Cpds Hunan Prov, Hengyang 421008, Peoples R China.;Hengyang Normal Univ, Dept Chem & Mat Sci, Key Lab Funct Organometall Mat Hunan Prov Univ, Hengyang 421008, Peoples R China.
关键词：
Simultaneous determination;Polyvinylpyrrolidone;Ascorbic acid;Dopamine;Uric acid;Electrochemical sensor
摘要：
A method with high sensitivity, good accuracy and fast response is of ever increasing importance for the simultaneous detection of AA, DA and UA. In this paper, a simple and sensitive electrochemical sensor, which based on the polyvinylpyrrolidone (PVP)-graphene composite film modified glassy carbon electrode (PVP-GR/GCE), was presented for detecting ascorbic acid (AA), dopamine (DA) and uric acid (UA) simultaneously. The PVP-GR/GCE has excellent electrocatalytic activity for the oxidation of AA, DA and UA. The second-order derivative linear sweep voltammetry was used for the electrochemical measurements. The peak potential differences of DA-AA, DA-UA, and UA-AA (measured on the PVP-GR/GCE) were 212, 130 and 342 mV respectively. Besides, the over potential of AA, DA and UA reduced obviously, so did the peak current increase. Under the optimum conditions, the linear ranges of AA, DA and UA were 4.0 μM-1.0 mM, 0.02-100 μM, and 0.04-100 μM, respectively. The detection limits were 0.8 μM, 0.002 μM and 0.02 μM for AA, DA, and UA. The electrochemical sensor presented the advantages of high sensitivity and selectivity, excellent reproducibility and long-term stability. Furthermore, the sensor was successfully applied to the analysis of real samples.[Figure not available: see fulltext.]. © 2020 The Author(s).
语种：
英文
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南岳佛教与道教科仪音乐的“共融”现象辨析
作者：
李刚;胡蝶
期刊：
黄河之声 ,2020年(9):5 ISSN：1004-6127
作者机构：
[胡蝶; 李刚] 衡阳师范学院
关键词：
南岳佛教音乐;南岳道教音乐;科仪音乐;共融现象
摘要：
南岳佛教与道教科仪音乐是否"共融"的命题,是学界关于南岳宗教音乐争论的一个焦点.论文通过对南岳佛教与道教科仪活动中的运用、科仪音乐的形式、风格和形态的对比,认为南岳佛教与道教科仪音乐虽然存在某些方面相似,但由于宗教体系的不同,两者的音乐形态、表现方式、经韵曲牌、旋律腔调等均有差别.
语种：
中文
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Rapid recognition and determination of tryptophan by carbon nanotubes and molecularly imprinted polymer-modified glassy carbon electrode
作者：
Wu, Yiyong;Deng, Peihong* ;Tian, Yaling;Ding, Ziyu;Li, Guangli;...
期刊：
Bioelectrochemistry ,2020年131:107393 ISSN：1567-5394
通讯作者：
He, Quanguo;Deng, Peihong
作者机构：
[Li, Guangli; He, Quanguo; Tian, Yaling; Zuberi, Zavuga; Ding, Ziyu; Wu, Yiyong; Liu, Jun] Hunan Univ Technol, Sch Life Sci & Chem, Zhuzhou 412007, Peoples R China.;[He, Quanguo; Tian, Yaling; Ding, Ziyu; Deng, Peihong; Wu, Yiyong; Liu, Jun] Hengyang Normal Univ, Key Lab Funct Organometall Mat Hunan Prov Univ, Dept Chem & Mat Sci, Key Lab Funct Met Organ Cpds Hunan Prov, Hengyang 421008, Peoples R China.;[Zuberi, Zavuga] Nelson Mandela African Inst Sci & Technol, Sch Life Sci & Bioengn, POB 447, Arusha, Tanzania.;[Deng, Peihong] Hengyang Normal Univ, Hengyang 421008, Peoples R China.
通讯机构：
[He, Quanguo; Deng, Peihong] H;Hunan Univ Technol, Sch Life Sci & Chem, Zhuzhou 412007, Peoples R China.;Hengyang Normal Univ, Hengyang 421008, Peoples R China.
关键词：
Molecularly imprinting;Multi-walled carbon nanotubes;Tryptophan;Voltammetric sensor
摘要：
A tryptophan (Trp) molecularly imprinted electrochemical sensor was fabricated by drop-coating an imprinted chitosan film on the surface of a glassy carbon electrode modified with multi-walled carbon nanotubes (MIP-MWCNTs/GCE). The surface morphology and electrochemical properties of the MIP-MWCNTs/GCE were characterized by scanning electron microscopy (SEM) and cyclic voltammetry (CV), respectively. The formation of hydrogen bonds between the functional polymer and the template molecule was confirmed by infrared spectroscopy. The electrochemical performance of the MIP-MWCNTs/GCE with Trp showed that the signal of the oxidation current of Trp obtained with MIP-MWCNTs/GCE was significantly enhanced relative to that of the uncovered GCE, indicating that the modified electrode can accelerate electron transfer and has strong selectivity for Trp. The experimental conditions were optimized in parallel, and under the optimal conditions, the MIP-MWCNTs/GCE showed a good linear relationship between the Trp oxidation peak current and Trp concentrations in the ranges of 2.0 nM–0.2 μM, 0.2 μM–10 μM and 10 μM–100 μM The limit of detection (LOD) was 1.0 nM (S/N = 3), and the modified electrode had good reproducibility and stability. Finally, the MIP-MWCNTs/GCE was successfully applied to the determination of Trp in the human serum samples. © 2019
语种：
英文
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Rapid and sensitive voltammetric detection of rhodamine B in chili-containing foodstuffs using MnO2 nanorods/electro-reduced graphene oxide composite
作者：
He, Quanguo;Liu, Jun;Xia, Yonghui;Tuo, Du;Deng, Peihong* ;...
期刊：
JOURNAL OF THE ELECTROCHEMICAL SOCIETY ,2019年166(10):B805-B813 ISSN：0013-4651
通讯作者：
Li, Guangli;Deng, Peihong
作者机构：
[Tuo, Du; He, Quanguo; Li, Guangli; Tian, Yaling; Wu, Yiyong; Liu, Jun] Hunan Univ Technol, Coll Life Sci & Chem, Zhuzhou 412007, Peoples R China.;[He, Quanguo; Li, Guangli; Deng, Peihong; Deng, PH; Li, GL; Liu, Jun] Hengyang Normal Univ, Hunan Prov Key Lab Funct Metal Organ Cpds, Key Lab Funct Organometall Mat Hunan Prov Univ, Dept Chem & Mat Sci, Hengyang 421008, Peoples R China.;[He, Quanguo; Li, Guangli; Liu, Jun; Chen, Dongchu] Foshan Univ, Sch Mat Sci & Energy Engn, Foshan 528000, Peoples R China.;[Xia, Yonghui] Zhuzhou Inst Food & Drug Control, Zhuzhou 412000, Peoples R China.
通讯机构：
[Li, Guangli; Deng, PH; Li, GL] H;[Li, Guangli] F;Hunan Univ Technol, Coll Life Sci & Chem, Zhuzhou 412007, Peoples R China.;Hengyang Normal Univ, Hunan Prov Key Lab Funct Metal Organ Cpds, Key Lab Funct Organometall Mat Hunan Prov Univ, Dept Chem & Mat Sci, Hengyang 421008, Peoples R China.;Foshan Univ, Sch Mat Sci & Energy Engn, Foshan 528000, Peoples R China.
关键词：
Electrochemistry;Glass membrane electrodes;Graphene;High performance liquid chromatography;Manganese oxide;Nanorods;Analytical conditions;Electrocatalytic effects;In-situ detections;Limit of detection;Modified glassy carbon electrode;Potentiostatic reduction;Voltammetric detection;Voltammetric sensor;Rhodium compounds
摘要：
A facile voltammetric sensor based on MnO2 nanorods/electro-reduced graphene oxide composite modified glassy carbon electrode (MnO2NRs-ERGO/GCE) was proposed for the detection of Rhodamine B (RhB). The MnO2NRs-ERGO/GCE was fabricated by a facile drop-casting approach followed by a potentiostatic reduction technique. A well-shaped oxidation peak of RhB was observed at the MnO2NRs-ERGO/GCE, and the response peak current was 17-fold and 2-fold higher than that of bare GCE and ERGO/GCE respectively, attributing to the synergistic electrocatalytic effect from ERGO sheets and MnO2NRs. Under the optimal analytical conditions, the response peak currents linearly increased with the RhB concentrations varying from 0.02 μM to 1.0 μM and from 1.0 μM to 20 μM. The limit of detection (LOD, S/N = 3) was 6.0 nM. Furthermore, the MnO2NRs-ERGO/GCE showed good selectivity, repeatability, reproducibility and stability. Finally, the MnO2NRs-ERGO/GCE was successfully employed to detect RhB in different commercial chili-containing foodstuffs, and the results were in good accordance with the values that detected by high-performance liquid chromatography. Combining with low cost and portable electrochemical apparatus, the proposed sensor is especially suitable for the in-situ detection of RhB in actual food samples. © 2019 The Electrochemical Society.
语种：
英文
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A Novel Modified Electrode for Detection of the Food Colorant Sunset Yellow Based on Nanohybrid of MnO2 Nanorods-Decorated Electrochemically Reduced Graphene Oxide
作者：
Ding, Ziyu;Deng, Peihong* ;Wu, Yiyong;Tian, Yaling;Li, Guangli;...
期刊：
Molecules ,2019年24(6):24061178-1-24061178-15 ISSN：1420-3049
通讯作者：
He, Quanguo;Deng, Peihong
作者机构：
[Li, Guangli; He, Quanguo; Tian, Yaling; Ding, Ziyu; Wu, Yiyong; Liu, Jun] Hunan Univ Technol, Sch Life Sci & Chem, Zhuzhou 412007, Peoples R China.;[Tian, Yaling; Ding, Ziyu; Deng, Peihong; Wu, Yiyong] Hengyang Normal Univ, Key Lab Funct Met Organ Cpds Hunan Prov, Key Lab Funct Organometall Mat Hunan Prov Univ, Dept Chem & Mat Sci, Hengyang 421008, Peoples R China.
通讯机构：
[He, Quanguo; Deng, Peihong] H;Hunan Univ Technol, Sch Life Sci & Chem, Zhuzhou 412007, Peoples R China.;Hengyang Normal Univ, Key Lab Funct Met Organ Cpds Hunan Prov, Key Lab Funct Organometall Mat Hunan Prov Univ, Dept Chem & Mat Sci, Hengyang 421008, Peoples R China.
关键词：
colorant analysis;sunset yellow;MnO2 nanorods;electrochemical reduced graphene oxide;voltammetric determination
摘要：
The nanohybrid of electrochemically-reduced graphene oxide (ERGO) nanosheets decorated with MnO2 nanorods (MnO2 NRs) was modified on the surface of a glassy carbon electrode (GCE). Controlled potential reduction was applied for the reduction of graphene oxide (GO). The characterization was performed by scanning electron microscopy, X-ray diffraction and cyclic voltammetry. Compared with the poor electrochemical response at bare GCE, a well-defined oxidation peak of sunset yellow (SY) was observed at the MnO2 NRs-ERGO/GCE, which was attributed to the high accumulation efficiency as well as considerable electrocatalytic activity of ERGO and MnO2 NRs on the electrode surface. The experimental parameters for SY detection were optimized in detail. Under the optimized experiment conditions, the MnO2 NRs-ERGO/GCE showed good linear response to SY in concentration range of 0.01–2.0 µM, 2.0–10.0 µM and 10.0–100.0 µM with a detection limit of 2.0 nM. This developed method was applied for SY detection in soft drinks with satisfied detected results. © 2019 by the authors.
语种：
英文
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Construction of effective electrochemical sensor for the determination of quinoline yellow based on different morphologies of manganese dioxide functionalized graphene
作者：
Wu, Yiyong;Deng, Peihong* ;Tian, Yaling;Magesa, Felista;Liu, Jun;...
期刊：
Journal of Food Composition and Analysis ,2019年84:103280 ISSN：0889-1575
通讯作者：
He, Quanguo;Deng, Peihong
作者机构：
[Magesa, Felista; Li, Guangli; He, Quanguo; Tian, Yaling; Wu, Yiyong; Liu, Jun] Hunan Univ Technol, Sch Life Sci & Chem, Zhuzhou 412007, Peoples R China.;[Tian, Yaling; Deng, Peihong; Wu, Yiyong] Hengyang Normal Univ, Key Lab Funct Met Organ Cpds Hunan Prov, Key Lab Funct Organometall Mat Hunan Prov Univ, Dept Chem & Mat Sci, Hengyang 421008, Peoples R China.;[Magesa, Felista] Nelson Mandela African Inst Sci & Technol, Life Sci & Bioengn, Arusha, Tanzania.
通讯机构：
[He, Quanguo; Deng, Peihong] H;Hunan Univ Technol, Sch Life Sci & Chem, Zhuzhou 412007, Peoples R China.;Hengyang Normal Univ, Key Lab Funct Met Organ Cpds Hunan Prov, Key Lab Funct Organometall Mat Hunan Prov Univ, Dept Chem & Mat Sci, Hengyang 421008, Peoples R China.
关键词：
Determination;Elecctrochemical reduction;Electrochemical sensor;Graphene;Manganese dioxide;Morphology;Quinoline yellow
摘要：
Developing simple and accurate QY detection methods is of great significant importance in ensuring food safety including drinks. Manganese dioxide nanoparticles (MnO2 NPs) with different morphologies were synthesized by hydrothermal method. Manganese dioxide/graphene (MnO2/GR) nanocomposites were directly prepared on the surface of glassy carbon electrode (GCE) by electrochemical reduction. The materials were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM) techniques. The effects of nano-MnO2 with different morphologies on the performance of quinoline yellow (QY) detection was investigated. The experimental findings revealed that MnO2 nanorods (MnO2 NRs) had better properties than both MnO2 nanowires (MnO2 NWs) and MnO2 nanotubes (MnO2 NTs). Under optimal experimental conditions, a good linear relationship between peak current of QY on GR/MnO2 NRs/GCE and concentrations ranging between 0.1 μM˜6.0 μM and 6.0 μM˜60 μM were observed, and 0.04 μM was the detection limit. The fabricated sensor was successfully tested to detect QY in soft drinks. © 2019 Elsevier Inc.
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英文
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Facile Electrochemical Sensor for Nanomolar Rutin Detection Based on Magnetite Nanoparticles and Reduced Graphene Oxide Decorated Electrode
作者：
He, Quanguo;Wu, Yiyong;Tian, Yaling;Li, Guangli;Liu, Jun;...
期刊：
Nanomaterials ,2019年9(1):115- ISSN：2079-4991
通讯作者：
Deng, Peihong;Chen, Dongchu
作者机构：
[He, Quanguo; Li, Guangli; Tian, Yaling; Wu, Yiyong; Liu, Jun] Hunan Univ Technol, Sch Life Sci & Chem, Zhuzhou 412007, Peoples R China.;[He, Quanguo; Tian, Yaling; Deng, Peihong; Wu, Yiyong] Hengyang Normal Univ, Hunan Prov Key Lab Funct Met Organ Cpds, Hengyang 421008, Peoples R China.;[He, Quanguo; Tian, Yaling; Deng, Peihong; Wu, Yiyong] Hengyang Normal Univ, Key Lab Funct Organometall Mat Hunan Prov Univ, Hengyang 421008, Peoples R China.;[He, Quanguo; Tian, Yaling; Deng, Peihong; Wu, Yiyong] Hengyang Normal Univ, Dept Chem & Mat Sci, Hengyang 421008, Peoples R China.;[He, Quanguo; Deng, Peihong; Deng, PH; Chen, Dongchu] Foshan Univ, Sch Mat Sci & Energy Engn, Foshan 528000, Peoples R China.
通讯机构：
[Deng, Peihong] H;[Deng, PH; Chen, DC] F;Hengyang Normal Univ, Hunan Prov Key Lab Funct Met Organ Cpds, Hengyang 421008, Peoples R China.;Hengyang Normal Univ, Key Lab Funct Organometall Mat Hunan Prov Univ, Hengyang 421008, Peoples R China.;Hengyang Normal Univ, Dept Chem & Mat Sci, Hengyang 421008, Peoples R China.
关键词：
amine-functionalized Fe3O4 nanoparticles;electrochemically reduced graphene oxide;nanomolar electroanalysis;rutin
摘要：
A new electrochemical sensor for nanomolar rutin detection based on amine-functionalized Fe3O4 nanoparticles and electrochemically reduced graphene oxide nanocomposite modified glassy carbon electrode (NH2-Fe3O4 NPs-ErGO/GCE) was fabricated through a simple method, and the X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM), transmission electron microscope (TEM), vibrating sample magnetometer (VSM) and electrochemical technique were used to characterize the modified electrode. The electrochemical behavior of rutin on the Fe3O4 NPs-ErGO/GCE was studied in detail. The electrochemical response of rutin at this modified electrode was remarkably higher than that of the bare GCE or other modified GCE (GO/GCE, Fe3O4 NPs-GO/GCE, and ErGO/GCE). Under the optimum determination conditions, Fe3O4 NPs-ErGO/GCE provided rutin with a broader detection range of 6.0 nM–0.1 µM; 0.1–8.0 µM and 8.0–80 µM, a minimum detectable concentration of 4.0 nM was obtained after 210 s accumulation. This novel method was applied in determination of rutin in pharmaceutical tablets and urine samples with satisfactory results. © 2019 by the authors. Licensee MDPI, Basel, Switzerland.
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英文
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Electrochemical Sensor for Rapid and Sensitive Detection of Tryptophan by a Cu2O Nanoparticles-Coated Reduced Graphene Oxide Nanocomposite
作者：
He, Quanguo;Tian, Yaling;Wu, Yiyong;Liu, Jun;Li, Guangli;...
期刊：
Biomolecules ,2019年9(5):ARTN 176 ISSN：2218-273X
通讯作者：
Deng, Peihong;Chen, Dongchu
作者机构：
[He, Quanguo; Tian, Yaling; Wu, Yiyong; Liu, Jun; Li, Guangli] Hunan Univ Technol, Sch Life Sci & Chem, Zhuzhou 412007, Peoples R China;[He, Quanguo; Tian, Yaling; Wu, Yiyong; Deng, Peihong] Hengyang Normal Univ, Dept Chem & Mat Sci, Univ Hunan Prov, Key Lab Funct Organometall Mat,Key Lab Funct Met, Hengyang 421008, Peoples R China;[He, Quanguo; Chen, Dongchu] Foshan Univ, Sch Mat Sci & Energy Engn, Foshan 528000, Peoples R China
通讯机构：
[Deng, Peihong] H;[Chen, Dongchu] F;Hengyang Normal Univ, Dept Chem & Mat Sci, Univ Hunan Prov, Key Lab Funct Organometall Mat,Key Lab Funct Met, Hengyang 421008, Peoples R China. Foshan Univ, Sch Mat Sci & Energy Engn, Foshan 528000, Peoples R China.
关键词：
cuprous oxide;electrochemical reduced graphene oxide;tryptophan;voltammetric detection
摘要：
In this paper, a nanocomposite of cuprous oxide and electrochemically reduced graphene oxide (Cu2O-ERGO) was prepared by a simple and low-cost method; hereby, a new method for the electrochemical determination of tryptophan (Trp) by this composite modified glassy carbon electrode (GCE) is proposed. The prepared materials and modified electrodes were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), and cyclic voltammetry (CV). The results showed that Cu2O-ERGO/GCE had good electrocatalytic activity for Trp. The effects of supporting electrolyte, scanning rate, accumulation potential, and accumulation time on the determination of Trp were studied. Under the optimum experimental conditions, Trp was quantitatively analyzed by square-wave voltammetry (SWV). The oxidation peak current of Trp had a good linear relationship with its concentration in the range of 0.02-20 M, and the detection limit was 0.01 M (S/N = 3). In addition, the modified electrode has high sensitivity, good repeatability, and long-term stability. Finally, the proposed method has been successfully applied in the determination of Trp concentration in practical samples.
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英文
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高师和声课程教学改革的思考
作者：
李刚
期刊：
戏剧之家 ,2019年(8):167-167 ISSN：1007-0125
作者机构：
衡阳师范学院音乐学院,湖南衡阳421000;[李刚] 衡阳师范学院
关键词：
高师;和声课程;教学改革策略
摘要：
和声课程是音乐专业学生必修的一门基础课程,对于提升学生音乐核心素养具有重要意义,强化其教学改革也具有重要意义。本文立足于高师和声课程教学,重点提出了一些教学改革策略,希望可以不断提升和声课程教学有效性。
语种：
中文
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A Simple and Efficient Molecularly Imprinted Electrochemical Sensor for the Selective Determination of Tryptophan
作者：
Tian, Yaling;Deng, Peihong* ;Wu, Yiyong;Ding, Ziyu;Li, Guangli;...
期刊：
Biomolecules ,2019年9(7):ARTN 294 ISSN：2218-273X
通讯作者：
He, Quanguo;Deng, Peihong
作者机构：
[Tian, Yaling; Wu, Yiyong; Ding, Ziyu; Li, Guangli; Liu, Jun; He, Quanguo] Hunan Univ Technol, Sch Life Sci & Chem, Zhuzhou 412007, Peoples R China;[Tian, Yaling; Deng, Peihong; Wu, Yiyong; Ding, Ziyu; Liu, Jun] Hengyang Normal Univ, Hunan Prov Key Lab Funct Met Organ Cpds, Hengyang 421008, Hunan, Peoples R China;[Tian, Yaling; Deng, Peihong; Wu, Yiyong; Ding, Ziyu; Liu, Jun] Hengyang Normal Univ, Key Lab Funct Organometall Mat Hunan Prov Univ, Hengyang 421008, Hunan, Peoples R China;[Tian, Yaling; Deng, Peihong; Wu, Yiyong; Ding, Ziyu; Liu, Jun] Hengyang Normal Univ, Dept Chem & Mat Sci, Hengyang 421008, Hunan, Peoples R China
通讯机构：
[He, Quanguo; Deng, Peihong] H;Hunan Univ Technol, Sch Life Sci & Chem, Zhuzhou 412007, Peoples R China. Hengyang Normal Univ, Hunan Prov Key Lab Funct Met Organ Cpds, Hengyang 421008, Hunan, Peoples R China. Hengyang Normal Univ, Key Lab Funct Organometall Mat Hunan Prov Univ, Hengyang 421008, Hunan, Peoples R China. Hengyang Normal Univ, Dept Chem & Mat Sci, Hengyang 421008, Hunan, Peoples R China.
关键词：
molecularly imprinted chitosan film;electrochemical sensor;tryptophan;selective determination
摘要：
In this paper, a tryptophan (Trp) molecularly imprinted chitosan film was prepared on the surface of an acetylene black paste electrode using chitosan as the functional polymer, Trp as the template molecule and sulfuric acid as the crosslinking agent. The surface morphologies of non-imprinted and imprinted electrodes were characterized by scanning electron microscopy (SEM). The formation of hydrogen bonds between the functional polymer and the template molecule was confirmed by infrared spectroscopy. Some factors affecting the performance of the imprinted electrode such as the concentration of chitosan, the mass ratio of chitosan to Trp, the dropping amount of the chitosan-Trp mixture, the solution pH, and the accumulation potential and time were discussed. The experimental results show that the imprinted electrode exhibit good affinity and selectivity for Trp. The dynamic linear ranges of 0.01-4 mu M, 4-20 mu M and 20-100 mu M were obtained by second derivative linear sweep voltammetry, and the detection limit was calculated to be 8.0 nM. The use of the imprinted electrode provides an effective method for eliminating the interference of potentially interfering substances. In addition, the sensor has high sensitivity, reproducibility and stability, and can be used for the determination of Trp in pharmaceutical preparations and human serum samples.
语种：
英文
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Facile and Ultrasensitive Determination of 4-Nitrophenol Based on Acetylene Black Paste and Graphene Hybrid Electrode.
作者：
He, Quanguo;Tian, Yaling;Wu, Yiyong;Liu, Jun;Li, Guangli;...
期刊：
Nanomaterials ,2019年9(3):429 ISSN：2079-4991
通讯作者：
Deng, Peihong;Chen, Dongchu
作者机构：
[He, Quanguo; Li, Guangli; Tian, Yaling; Wu, Yiyong; Liu, Jun] Hunan Univ Technol, Sch Life Sci & Chem, Zhuzhou 412007, Peoples R China.;[He, Quanguo; Tian, Yaling; Deng, Peihong; Wu, Yiyong] Hengyang Normal Univ, Key Lab Funct Met Organ Cpds Hunan Prov, Hengyang 421008, Peoples R China.;[He, Quanguo; Tian, Yaling; Deng, Peihong; Wu, Yiyong] Hengyang Normal Univ, Key Lab Funct Organometall Mat Hunan Prov Univ, Hengyang 421008, Peoples R China.;[He, Quanguo; Tian, Yaling; Deng, Peihong; Wu, Yiyong] Hengyang Normal Univ, Dept Chem & Mat Sci, Hengyang 421008, Peoples R China.;[He, Quanguo; Chen, Dongchu] Foshan Univ, Sch Mat Sci & Energy Engn, Foshan 528000, Peoples R China.
通讯机构：
[Deng, Peihong] H;[Chen, Dongchu] F;Hengyang Normal Univ, Key Lab Funct Met Organ Cpds Hunan Prov, Hengyang 421008, Peoples R China.;Hengyang Normal Univ, Key Lab Funct Organometall Mat Hunan Prov Univ, Hengyang 421008, Peoples R China.;Hengyang Normal Univ, Dept Chem & Mat Sci, Hengyang 421008, Peoples R China.
关键词：
4-Nitrophenol;acetylene black;graphene;nanomolar detection;voltammetric sensor;water resources protection
摘要：
4-nitrophenol (4-NP) is a hazardous waste and a priority toxic pollutant identified by US Environmental Protection Agency (EPA). Hence, in this paper, a voltammetric sensor was proposed for the direct and sensitive detection of 4-nitrophenol (4-NP) at nanomolar level in complex matrices by using graphene and acetylene black paste hybridized electrode (GR/ABPE). Under optimal conditions, the calibration curve demonstrates a linear relationship for 4-NP in the range from 20 nM to 8.0 µM and 8.0 µM to 0.1 mM separately with the detection limit of 8.0 nM. In addition to it, the performance of the GR/ABPE in practical applications was evaluated by detecting 4-NP in various water samples, and satisfactory recoveries were realized. Therefore, GR/ABPE may have a great potential application for facile and sensitive detection of 4-NP in complex matrices at nanomolar level. © 2019 by the authors. Licensee MDPI, Basel, Switzerland.
语种：
英文
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Facile Preparation of Fe3O4/C Nanocomposite and Its Application for Cost-Effective and Sensitive Detection of Tryptophan
作者：
Liu, Jun;Dong, Shuai;He, Quanguo;Yang, Suchun;Xie, Mei;...
期刊：
Biomolecules ,2019年9(6):245- ISSN：2218-273X
通讯作者：
Li, Guangli;Deng, Peihong
作者机构：
[He, Quanguo; Li, Guangli; Xie, Mei; Dong, Shuai; Yang, Suchun; Liu, Jun] Hunan Univ Technol, Coll Life Sci & Chem, Hunan Key Lab Biomed Nanomat & Devices, Zhuzhou 412007, Peoples R China.;[Deng, Peihong] Hengyang Normal Univ, Dept Chem & Mat Sci, Key Lab Funct Met Organ Cpds Hunan Prov, Hengyang 421008, Peoples R China.;[Deng, Peihong] Hengyang Normal Univ, Dept Chem & Mat Sci, Key Lab Funct Organometall Mat Hunan Prov Univ, Hengyang 421008, Peoples R China.;[Xia, Yonghui] Zhuzhou Inst Food & Drug Control, Zhuzhou 412000, Peoples R China.
通讯机构：
[Li, Guangli; Deng, Peihong] H;Hunan Univ Technol, Coll Life Sci & Chem, Hunan Key Lab Biomed Nanomat & Devices, Zhuzhou 412007, Peoples R China.;Hengyang Normal Univ, Dept Chem & Mat Sci, Key Lab Funct Met Organ Cpds Hunan Prov, Hengyang 421008, Peoples R China.;Hengyang Normal Univ, Dept Chem & Mat Sci, Key Lab Funct Organometall Mat Hunan Prov Univ, Hengyang 421008, Peoples R China.
关键词：
Fe3O4/C composite;Second derivative linear scan voltammetry;Tryptophan;Voltammetric detection
摘要：
In this study, we reported facile synthesis of Fe3O4/C composite and its application for the cost-effective and sensitive determination of tryptophan (Trp) in human serum samples. Fe3O4/C composites were prepared by a simple one-pot hydrothermal method followed by a mild calcination procedure, using FeCl3·6H2O as Fe3O4 precursor, and glucose as reducing agent and carbon source simultaneously. The Fe3O4/C composite modified glassy carbon electrode (Fe3O4/C/GCE) was prepared by drop-casting method. The microstructure and morphology of Fe3O4/C composite was characterized by powder X-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively. Due to large specific surface area and synergistic effect from Fe3O4 nanoparticles and carbon coating, Fe3O4/C composite showed excellent electrocatalytic activity toward the oxidation of Trp. As a result, the proposed Fe3O4/C/GCE displayed superior analytical performances toward Trp determination, with two wide detection ranges (1.0–80 µM and 80–800 µM) and a low detection limit (0.26 µM, S/N = 3). Moreover, successful detection of Trp in human serum samples further validate the practicability of the proposed sensor. © 2019 by the authors. Licensee MDPI, Basel, Switzerland.
语种：
英文
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南岳佛教、道教科仪音乐的对比研究——以两部法会为例
作者：
黄烽;李刚
期刊：
戏剧之家 ,2019年(35):49-49 ISSN：1007-0125
作者机构：
南昌大学艺术与设计学院,江西南昌330031;衡阳师范学院音乐学院,湖南衡阳421008;[黄烽] 南昌大学;[李刚] 衡阳师范学院
关键词：
南岳正一道教;南岳佛教;科仪音乐;对比研究
摘要：
南岳宗教音乐风格独特,历史绵长。论文以正一道教的"杨林神王平安清醮法会"及佛教的"礼金刚舍利塔仪轨"梵呗为例,通过科仪程序、音乐形式等对比研究,认为南岳佛、道教音乐在具体形式上有很大不同,但在某种程度上又有着一定的联系。
语种：
中文
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Morphologically Tunable MnO2 Nanoparticles Fabrication, Modelling and Their Influences on Electrochemical Sensing Performance toward Dopamine
作者：
He, Quanguo;Li, Guangli;Liu, Xiaopeng;Liu, Jun;Deng, Peihong;...
期刊：
Catalysts ,2018年8(8):323-323 ISSN：2073-4344
通讯作者：
Chen, Dongchu
作者机构：
[He, Quanguo; Li, Guangli; Liu, Jun; Chen, Dongchu] Foshan Univ, Sch Mat Sci & Energy Engn, Foshan 528000, Peoples R China.;[He, Quanguo; Li, Guangli; Liu, Xiaopeng; Liu, Jun] Hunan Univ Technol, Coll Life Sci & Chem, Zhuzhou 412007, Peoples R China.;[Deng, Peihong] Hengyang Normal Univ, Dept Chem & Mat Sci, Hengyang 421008, Peoples R China.
通讯机构：
[Chen, Dongchu] F;Foshan Univ, Sch Mat Sci & Energy Engn, Foshan 528000, Peoples R China.
关键词：
MnO2 nanomaterials;morphology-dependence;reduced graphene oxide;dopamine;electrochemical sensor
摘要：
The morphology or shape of nanomaterials plays an important role in functional applications, especially in the electrochemical sensing performance of nanocomposites modified electrodes. Herein, the morphology-dependent electrochemical sensing properties of MnO2-reduced graphene oxide/glass carbon electrode (MnO2-RGO/GCE) toward dopamine detection were investigated. Firstly, various morphologies of nanoscale MnO2, including MnO2 nanowires (MnO2 NWs), MnO2 nanorods (MnO2 NRs), and MnO2 nanotubes (MnO2 NTs), were synthesized under different hydrothermal conditions. Then the corresponding MnO2-RGO/GCEs were fabricated via drop-casting and the subsequent electrochemical reduction method. The oxidation peak currents increase with the electrochemical activity area following the order of MnO2 NWs-RGO/GCE, MnO2 NTs-RGO/GCE, and MnO2 NRs-RGO/GCE. The spatial models for MnO2 NWs, MnO2 NTs, and MnO2 NRs are established and accordingly compared by their specific surface area, explaining well the evident difference in electrochemical responses. Therefore, the MnO2 NWs-RGO/GCE is selected for dopamine detection due to its better electrochemical sensing performance. The response peak current is found to be linear with dopamine concentration in the range of 8.0 × 10−8 mol/L–1.0 × 10−6 mol/L and 1.0 × 10−6 mol/L–8.0 × 10−5 mol/L with a lower detection limit of 1 × 10−9 mol/L (S/N = 3). Finally, MnO2 NWs-RGO/GCE is successfully used for the determination of dopamine injection samples, with a recovery of 99.6–103%. These findings are of great significance for understanding the relationship between unlimited nanoparticle structure manipulation and performance improvement.
语种：
英文
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基于Unreal Engine 4引擎的虚拟校园游览开发思路
作者：
李刚;熊越;颜佳伟;王绍垒
期刊：
美与时代：城市 ,2018年(6):110-111 ISSN：1003-2592
作者机构：
衡阳师范学院美术学院;[颜佳伟; 熊越; 王绍垒; 李刚] 衡阳师范学院
关键词：
VR技术;虚拟校园
摘要：
文章对基于Unreal Engine4引擎的虚拟校园游览的开发思路进行了简洁的描述,并且在此基础上又综合分析了其科学性、 先进性和创新性,从而为后期开发打下坚实的理论基础.
语种：
中文
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Sensitive and Selective Detection of Tartrazine Based on TiO2-Electrochemically Reduced Graphene Oxide Composite-Modified Electrodes
作者：
He, Quanguo;Liu, Jun;Liu, Xiaopeng;Li, Guangli;Deng, Peihong* ;...
期刊：
Sensors ,2018年18(6):1911 ISSN：1424-8220
通讯作者：
Chen, Dongchu;Deng, Peihong
作者机构：
[He, Quanguo; Li, Guangli; Liu, Jun; Chen, Dongchu] Foshan Univ, Sch Mat Sci & Energy Engn, Foshan 528000, Peoples R China.;[He, Quanguo; Deng, Peihong; Liang, Jing; Liu, Xiaopeng] Hengyang Normal Univ, Dept Chem & Mat Sci, Hengyang 421008, Peoples R China.;[He, Quanguo; Li, Guangli; Deng, Peihong; Liang, Jing; Liu, Xiaopeng; Liu, Jun] Hunan Univ Technol, Coll Life Sci & Chem, Hunan Key Lab Biomed Nanomat & Devices, Zhuzhou 412007, Peoples R China.
通讯机构：
[Chen, Dongchu] F;[Deng, Peihong] H;Foshan Univ, Sch Mat Sci & Energy Engn, Foshan 528000, Peoples R China.;Hengyang Normal Univ, Dept Chem & Mat Sci, Hengyang 421008, Peoples R China.;Hunan Univ Technol, Coll Life Sci & Chem, Hunan Key Lab Biomed Nanomat & Devices, Zhuzhou 412007, Peoples R China.
关键词：
electrocatalysis;modified electrode;reduced graphene oxide;tartrazine;titanium dioxide
摘要：
TiO<inf>2</inf>-reduced graphene oxide composite-modified glassy carbon electrodes (TiO<inf>2</inf>–ErGO–GCE) for the sensitive detection of tartrazine were prepared by drop casting followed by electrochemical reduction. The as-prepared material was characterized by transmission electron microscopy (TEM) and X-ray diffraction (XRD). Cyclic voltammetry and second-order derivative linear scan voltammetry were performed to analyze the electrochemical sensing of tartrazine on different electrodes. The determination conditions (including pH, accumulation potential, and accumulation time) were optimized systematically. The results showed that the TiO<inf>2</inf>–ErGO composites increased the electrochemical active area of the electrode and enhanced the electrochemical responses to tartrazine significantly. Under the optimum detection conditions, the peak current was found to be linear for tartrazine concentrations in the range of 2.0 ×10<sup>−8</sup>–2.0 ×10<sup>−5</sup>mol/L, with a lower detection limit of 8.0 ×10<sup>−9</sup>mol/L (S/N = 3). Finally, the proposed TiO<inf>2</inf>–ErGO–GCEs were successfully applied for the detection of trace tartrazine in carbonated beverage samples.<br/> ©2018 by the authors. Licensee MDPI, Basel, Switzerland.
语种：
英文
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论Unreal Engine4引擎基础上虚拟校园游览的价值与意义
作者：
王绍垒;胡帅勇;李刚;熊越
期刊：
美与时代：城市 ,2018年(1):84-85 ISSN：1003-2592
作者机构：
衡阳师范学院美术学院;[胡帅勇; 熊越; 王绍垒; 李刚] 衡阳师范学院
关键词：
虚拟技术;VR技术;校园游览
摘要：
文章将新的Unreal Engine4引擎建设理念应用于虚拟校园游览建设中,并在此基础上对虚拟校园游览的经济、社会、技术和文化方面等进行了综合分析,从而探讨了虚拟校园游览在新潜力下的价值与意义。
语种：
中文
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艺考音乐理论课程教学刍议
作者：
李刚
期刊：
戏剧之家 ,2017年(16):168-168 ISSN：1007-0125
作者机构：
衡阳师范学院音乐学院
关键词：
艺考生;音乐理论课程;教学特点
摘要：
音乐理论课程是艺考生（音乐类）备考的一项重要内容,包括基本乐理,视唱练耳等。虽然归结于＂理论＂这一块,但与其他理论课程有着明显的区别。艺考音乐理论课程教学对教师提出较高的要求。
语种：
中文
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一种便于安装的舞台音响
发明/设计人：
李刚
申请/专利权人：
衡阳师范学院
申请/专利号：
CN201721805929.7
申请时间：
2017-12-21
公开号：
CN207783038U
公开时间：
2018-08-28
摘要：
本实用新型公开了一种便于安装的舞台音响，包括音响本体，所述音响本体的前表面嵌入设置有显示屏，所述显示屏的外侧设置有推板，所述音响本体的后侧设置有固定架，所述固定架的一端设置有转轴。本实用新型通过显示屏方便在舞台演唱时，利用显示屏显示出字幕或画面，可以增强舞台表演的氛围，通过固定架和储存槽有利于工作人员把音响本体固定在高处，不使用时，方便把固定架收纳在储存槽内，防止固定架影响工作人员的操作，通过推板和百叶挡板方便对显示屏进行保护，避免显示屏受到损坏而影响音响本体的工作质量，通过储线盒方便对电源线进行收纳，避免电源线裸露在外面过长而受到损坏，提高了音响本体的使用寿命。
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