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Chinese Science Bulletin 1989年第6期34卷 471-473页

作者：周铁安聂利华姚守拙张文柳 Department oF chemistry and chemical engineering Hunan University Changsha Shantou Ultrasonic Instrument Institute

I INTRODUCTIONIt was successfully demonstrated in 1980 that piezoelectric quartz crystals could oscillate in solutions. Afterwords, several reports have shown that crystal frequency is affected by solution properties ... 详细信息

关键词： piezoelectric quartz crystals equivalent circuit aqueous electrolyte solution Pierce oacillator.

A piezoelectric spectro- electrochemical study on the structural interconversion for poly(o-phenylenediamine) between its ladder structure with phenazine units and polyaniline-like chains

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Science Bulletin 2005年第15期 64-70页

作者： TU Xinman, XIE Qingji, WANG Meiling, ZHANG Youyu & YAO Shouzhuo College of chemistry and chemical engineering, Key Laboratory of chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, hunan Normal university, changsha 410081, china

The combination of reflectance UV-Vis spec- troelectrochemistry with electrochemical quartz crystal microbalance (EQCM) and separate reflectance FTIR char- acterization were used to investigate the structural intercon- version for poly(o-phenylenediamine) (PoPD) between its ladder structure with phenazine units and polyaniline-like linear chains. The poly(o-phenylenediamine) films potentio- statically (0.8 V vs. SCE) grew on Au electrodes from 0.20 mol·L?1 H2SO4 (PoPD1) or 0.40 mol·L?1 NaOH (PoPD2) aque- ous solution containing 0.20 mol·L?1 Na2SO4 + 0.10 mol·L?1 o-phenylenediamine. By considering the mass of deposited PoPD2 film obtained from the EQCM data and the charge consumed under the current peak at ca. 0.6 V vs. SCE for oxidation of -NH2 groups in as-prepared PoPD2 during po- tential cycling in 0.10 mol·L-1 aqueous H2SO4, the molar per- centage of the polyaniline-like chains was estimated to be 19% (relative to total phenylenediamine units), being in agreement with the result obtained from a formaldehyde- combination experiment through the aminocarbonyl reaction. After 40-cycle potential sweeps between 0.2 and 0.8 V vs. SCE the polyaniline-like chains in PoPD2 could be com- pletely converted via intramolecular cyclization into the lad- der structure with phenazine units. However, PoPD1 was found to be perfectly composed of the ladder structure with phenazine units, and after 40-cycle potential sweeps between ?0.4 and 0.1 V vs. SCE only 2.5% in molar percentage of PoPD’s ladder structure could be converted into polyani line-like chains, suggesting that the ladder structure with phenazine units is thermodynamically more stable due to its possessing higher conjugation.

关键词： piezoelectric spectroelectrochemistry poly(o-phenylene- diamine) ladder structure with phenazine units polyaniline-like chains structural interconversion.

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精对苯二甲酸生产技术的进展

石油化工 2005年第1期34卷 89-94页

作者：吴鑫干何斌鸿王艳辉张旭东阳卫军湖南大学化学化工学院湖南长沙410082

针对精对苯二甲酸主要的工业生产技术,综述了以对二甲苯为原料的液相氧化法与加氢精制法等工艺过程及近年来精对苯二甲酸合成工艺技术的研究进展。指出了以高温水作溶剂及无卤催化剂体系的绿色化学工业是今后一段时期生产精对苯二甲酸... 详细信息

针对精对苯二甲酸主要的工业生产技术,综述了以对二甲苯为原料的液相氧化法与加氢精制法等工艺过程及近年来精对苯二甲酸合成工艺技术的研究进展。指出了以高温水作溶剂及无卤催化剂体系的绿色化学工业是今后一段时期生产精对苯二甲酸的技术动向。

关键词：对苯二甲酸对二甲苯液相氧化法加氢精制法催化剂

SILICON NITRIDE POWDER SYNTHESIZED BY THERMAL PLASMA METHOD

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中国有色金属学会会刊：英文版 1996年第3期6卷 103-107页

作者： Liang Shuquan Huang Baiyun Zheng Ziqiao(Central South university of Technology, changsha 410083.Szepvolgyi J (Research Laboratory for inorganic chemistry of Hungarian Academy of Sciences,H-1502, Budapest, Hungary) CENT S UNIV TECHNOL CHANGSHA 410083PEOPLES R CHINA HUNGARIAN ACAD SCI INORGAN CHEM RES LABH-1502 BUDAPESTHUNGARY

ＳＩＬＩＣＯＮＮＩＴＲＩＤＥＰＯＷＤＥＲＳＹＮＴＨＥＳＩＺＥＤＢＹＴＨＥＲＭＡＬＰＬＡＳＭＡＭＥＴＨＯＤ￥ＬｉａｎｇＳｈｕｑｕａｎ；ＨｕａｎｇＢａｉｙｕｎ；ＺｈｅｎｇＺｉｑｉａｏ（ＣｅｎｔｒａｌＳｏｕｔｈＵｎｉｖｅｒ... 详细信息

ＳＩＬＩＣＯＮＮＩＴＲＩＤＥＰＯＷＤＥＲＳＹＮＴＨＥＳＩＺＥＤＢＹＴＨＥＲＭＡＬＰＬＡＳＭＡＭＥＴＨＯＤ￥ＬｉａｎｇＳｈｕｑｕａｎ；ＨｕａｎｇＢａｉｙｕｎ；ＺｈｅｎｇＺｉｑｉａｏ（ＣｅｎｔｒａｌＳｏｕｔｈＵｎｉｖｅｒｓｉｔｙｏｆＴｅｃｈｎｏｌｏｇｙ，...

关键词： Si3.4 nanosized powder thermal plasma method

Analysis of volatile oil in Rhizoma Ligustici Chuanxiong-Radix Paeoniae Rubra by gas chromatography-mass spectrometry and chemometric resolution

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Acta Pharmacologica Sinica 2006年第4期27卷 491-498页

作者： Xiao-ru LI Yi-zeng LIANG~2 Fang-qiu GUO College of chemistry and chemical engineering,Research Center of Modernization of Traditional Chinese Medicines,Central South {3.,changsha 410083.china Collegeofchemistryandchemicalengineering ResearchCenterofModernizationofTraditionalChineseMedicinesCentralSouthUniversityCha

Aim:To analyze the volatile chemical components of the herbal pair RhizomaLigustici Chuanxiong-Radix Paeoniae Rubra(RLC-RPR)and compare them withthose of each of the herbs ***:Gas chromatography-mass spectrom-etry(GC-MS),a chemometric resolution technique using the heuristic evolvinglatent projections(HELP)method,and the overall volume integration methodwere ***:In total,52,3.,and 61 volatile chemical components in RLC,RPR,and RLC-RPR essential oils were determined,respectively,accounting for95.14%,95.19%,and 89.68% of the total contents of essential oil of RLC,RPR,andRLC-RPR,*** main volatile chemical components werebutyldienephthalide(20.65%)and ligustilide(50.15%)for RLC;and n-hexadecanoicacid(20.18%),[Z,Z]9,12-octadecadienoic acid(3..11%),2-hydroxy-benzaldehyde(17.08%)for RPR,and butyldienephthalide(14.80%),and ligustilide(3..91%)*** main volatile chemical components of RLC-RPR were almost thesame as those of RLC,but the relative amounts were ***:Thenumber of volatile chemical components in RLC-RPR was almost equal to the sumof the number in the 2 constituent herbs,but the relative amounts were ***,an acid-base reaction takes place during the process of decoctingthe *** data gathered in this study may be helpful for understanding thesynergistic nature of this herb pair in traditional Chinese medicine.

关键词： herbal pair Rhizoma Ligustici Chuanxiong-Radix Paeoniae Rubra essential oil gas chromatography-mass spectrometry chemometric resolution method

思维策略训练对高中生化学问题解决能力影响的实验研究

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心理科学 2004年第5期27卷 1049-1051页

作者：吴鑫德张庆林陈向阳湖南师范大学长沙410081 西南师范大学重庆400715

研究思维策略训练对于高中生解决化学计算问题的有效性。被试为 1 61 6名高中学生 ,训练由经过培训的 1 7名高中化学教师承担 ,时间为 1 0周 ,实验采用自编的《高中生化学计算问题解决思维策略训练教程》及《自我提示卡》 ,在真实的课... 详细信息

研究思维策略训练对于高中生解决化学计算问题的有效性。被试为 1 61 6名高中学生 ,训练由经过培训的 1 7名高中化学教师承担 ,时间为 1 0周 ,实验采用自编的《高中生化学计算问题解决思维策略训练教程》及《自我提示卡》 ,在真实的课堂教学情境和正常的教学秩序下进行 ,以探索化学学科问题解决思维策略训练的有效性。结果表明 :思维策略训练能显著地提高高中生的化学计算问题解决能力 ,且普通中学高中生的训练效果明显优于重点中学。

关键词：思维策略训练高中生化学问题解决能力教育心理学思维心理学实验训练

Comparative evaluation of two screening methods for identification of BSA bound ligands from Puerariae lobata flower

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Comparative evaluation of two screening methods for identifi...

中国化学会第28届学术年会

作者： Shuyun Shi,Liangliang Liu,Xiaoqing Chen School of chemistry and chemical engineering,Central South {3.,changsha 410083.china

＜正＞Rapid screening techniques for identification of active compounds from natural products are not only for clarification of the therapeutic material basis but also for supplying suitable chemical markers for quali...

关键词：

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大孔螯合树脂PSB的合成及应用

化学试剂 1989年第2期11卷 105-107页

作者：陈行琦吴耀勋湖南大学化学化工系

研讨了大孔螯合树脂聚-N-邻羟苄叉乙烯基苄胺(poly-N-salicylidenevinylbenzylamine,简称 PSB)的合成及应用。试验结果表明,PSB 树脂对 Cu^(2+)具有吸附选择性。当吸附体系中存在低分子络合剂 SCN^-和丙酮溶剂时,PSB 树脂对 Fe^(3.)、CO... 详细信息

研讨了大孔螯合树脂聚-N-邻羟苄叉乙烯基苄胺(poly-N-salicylidenevinylbenzylamine,简称 PSB)的合成及应用。试验结果表明,PSB 树脂对 Cu^(2+)具有吸附选择性。当吸附体系中存在低分子络合剂 SCN^-和丙酮溶剂时,PSB 树脂对 Fe^(3.)、CO^(2+)的吸附容量显著增加。将其应用于光亮镀镍溶液中微量铜(Cu^(2+))的去除以及废水中微量铜(Cu^(2+))的回收有一定效果。

关键词： PSB 大孔螯合树脂树脂合成铜

多元光度分析的品质因数理论及结果可靠性评价

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分析化学 1989年第12期17卷 1062-1067页

作者：梁逸曾谢玉珑俞汝勤湖南大学化学化工系湖南大学化学化工系长沙 410012 长沙 410012 湘潭大学化学系

本文对多元光度分析的品质因数理论进行了阐述,并分别对环境分析和药物分析中常见的两个分析体系的结果可靠性及方法的适用范围作了讨论。表明多元光度分析方法实为传统单变量分析校正方法的一种拓广,不但可大大提高分析方法的选择性,... 详细信息

本文对多元光度分析的品质因数理论进行了阐述,并分别对环境分析和药物分析中常见的两个分析体系的结果可靠性及方法的适用范围作了讨论。表明多元光度分析方法实为传统单变量分析校正方法的一种拓广,不但可大大提高分析方法的选择性,而且还能对其结果可靠性作出理论性解释,展示了多元光度分析方法取代单变量分析校正方法的趋势。

关键词：多元光度分析灵敏度选择性检测下限误差传递

Photocatalytic Activity of TiO2 Nanotube Arrays

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Photocatalytic Activity of TiO2 Nanotube Arrays