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A single crystalline binuclear complex of CuCl〓tetramethylethylenediamine 1: 1 was obtained and indicated that the catalyst for 1 to 2 was also multi-copper complex.

从氯化铜—四甲基乙二胺(1:1)的双核络合物的单晶结构推测,该反应的催化剂是多核铜络合物。

According to the result, we believed that the reason resulted in the low sensitivity was that the marker residue compound MQCA structure has changed after conjugated with protein and the antibody induced by the conjugation could not recognize the free MQCA in the ci-ELISA. Therefore we designed some hapten which could reserve the marker residue structural speciality mostly. After synthesis route selection and optimum, the hapten 7-Hydroxymethyl-3-methyl-quinoxaline-2-carboxylic acid was synthesized, used 4-methyl-2-nitroaniline as the start material via six steps, such as oxidation cyclization, bromize reaction, hydrolysis, Beirut reaction, reduction, hydrolysis. This work established basis for producing the high affinity antibody and developing the sensitive ELISA residue detection method.

本论文认为导致ELISA检测灵敏度较低的原因,是残留标示物和蛋白偶联后的特征结构发生改变,诱导产生的抗体不能够对游离MQCA很好的识别,因此,本论文设计了能够最大化保留MQCA结构特征的系列半抗原结构,并对其合成路线进行了筛选和优化,最终以对甲基邻硝基苯胺为起始原料,经氧化环化、溴代、水解、Beirut缩合、还原、水解六步反应制备含羟甲基结构的MQCA衍生物7-羟基甲基-3-甲基-喹噁啉-2-羧酸,为制备对游离残留标示物高亲和力的抗体,高灵敏度的ELISA残留检测方法的建立奠定基础。

Resonance light scattering spectrum of cadmium- phenanthorline- bromophenol blue system has been studied. The effects of interference substances and optimization of procedure have been investigated. In the presence of Tris-HCl(pH=9.60),Cd2+ reacts with Phen to form the chelate cation, which further reacts with acid dye of BPB to form an ion-associated complex. Then, the complex molecules are accumulated to particles by virtue of hydrophobic forces and other molecular forces. This results in significant enhancement of RLS intensity, and the enhanced intensity of RLS at 638nm is proportional to the concentration of Cd~(2+).

研究了镉-邻菲罗啉-溴酚蓝体系在碱性条件下的共振光散射光谱特征,考察了体系的影响因素和最佳反应条件,研究表明,在pH=9.60的Tris-HCl介质中,镉与邻菲罗啉形成络阳离子,再与酸性染料溴酚蓝形成离子缔合配合物,在疏水力等分子间作用力下,缔合物分子聚集形成缔合微粒,溶液的共振散射光显著增强;在638nm处RLS增强程度与镉浓度成线性关系,线性范围为0-3.20mg/L,检出限为4.50ug/L。

The melting point FT of fly ash is about 1 200~1 250 ℃ and the HHV of fly ash is 15~29 MJ/kg. The water content of condensable products is 65%~93.5%.

可凝物的产率占到了反应物料的30%~50%,可凝物中水分含量65%~93.5%。

The invention uses the method of the fusion and direct polymerization to prepare the carboxyl-terminated lactic acid prepolymer and then copolymerize with the aliphatic polycarbonate; then the reaction is done in the twin-screw extruder to screw out the extension chain and the good polylactic acid copolymer is made.

本发明采用熔融直接缩聚的方法制备出羧基封端的乳酸预聚物,接着再与脂肪族聚碳酸酯二元醇进行共聚,然后再在双螺杆挤出机中进行反应挤出扩链,制备性能良好的聚乳酸共聚物。

Based on the problem of various types of catalyst and according to the features of carbonylation catalysts reactions, our team has been designed a series of new metal complexes of benimidazoles, which can be used for carbonylation catalyst of industry. Seven new benzimidazole derivatives were prepared by the o-phenylenediamine、oxalic acid、glycolic acid、monomethyl monopotassium malonate、ethyl cyanoacetate、succinic anhydride. The structures of them were confirmed by IR、Elemental analsis. The crystal structures of d and e were determined by X-ray single crystal diffraction of Germanic Bruker Smart APEX II CCD. The catalysis of them was tested by carbonylation reactions.

本文设计以邻苯二胺和草酸、羟基乙酸、丙二酸单甲酯、氰基乙酸乙酯、丁二酸单甲酯为原料采用PPA催化和无机酸催化法,合成了4种苯并咪唑-2-羧酸衍生物并进行了表征;培养了2个化合物d、e的晶体并测定和讨论了晶体结构;制备了3种未见报道的苯并咪唑金属配合物,对配合物在羰基化法制醋酐-醋酸反应的催化作用进行了初步试验。

It was found that the thermodynamically unfavourable isomerization of quadracyclane to norbornadiene could be accomplished in the presence of toluene or durene as a co-sensitizer.

首次发现在甲苯、杜苯等芳烃共敏化下,可以使原来不能进行的、热力学不利的四环烷→降冰片二烯异构化得以进行,并根据CIDNP结果提出这是由于生成了敏化剂/底物/芳烃三元基激络合物使反应的势能面改变造成的并促进单线态的系间窜跃。

A new functional electroluminescent copolymer is reported in which chromophores and hexa segments alternate along the polymer backbone.

采用Wittig反应合成了一种分子主链由烷氧基取代的1,4二苯乙烯基苯聚对亚苯基亚乙烯基(PPV的三个单元的齐聚物与柔性隔离链段五缩六乙二醇组成的交替型蓝绿色发光共聚物。

In order to enhance the compatibility of ABS/PP/CaCO3 composites, the effects of reactive blends of the composites were studied by using Haake rheometer. The effects of various assistant cross-linkingers, such as castor oil, triallyl isocyanurate, turpentine (JS-1) and glycol dimethacrylate, and the used amount of cross-linkinger-dicumyl peroxide on the torques of the melting composites were investigated.

为提高ABS/PP/CaCO3复合材料相容性,采用转矩流变仪观察了ABS/PP/CaCO3三元复合物反应性共混后的扭矩,考察了不同的助交联剂蓖麻油、异氰脲酸三烯丙酯、松香酯(JS-1)、二甲基丙烯酸乙二醇酯以及交联剂过氧化二异丙苯的用量对共混物的影响。

Characteristics of Inclusions: After the tea is kept for a long period of time in a stall and deep fermentation processing begins, the specialties of material and manufacturing make many bioreactions occur for thorough activation of microbes to excrete extra-cellular enzymes, which impacts over 500 stuffs of tea. Theses microbes contain catechin, polyphenols, amylase, cellulose, protein, lipid ,alcohol, ketone, vitamin, microorganism, and organic acid, making them transform, isomerize and degrade, polymerize and couple, so as to produce amylase, thearubigins, theaflavins, cellulose, and microelements that other commercial teas could not produce or produce too little.

三、 内含物的特点:由于原料、制造的特别性,经长期陈化和深发酵的过程,茶叶内含物发生多种生物生化反应,充分激活微生物分泌胞外酶,作用于茶叶中的内含儿茶素、多酚、多糖、纤维素、植物素、蛋白质、脂类、醇类、酮类、维生素、微量元素、有机酸等500多种物质,使之转化、异构降解聚合耦联,生成其他商品茶无法比拟和缺乏的多糖、茶红素、茶黄素、纤维素、微量元素等,并形成以菇稀醇类为主体香气。

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