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This includes the determination of gross reducible iron and manganese oxides, their soluble behavior and the kinetics of redox reaction between iron and manganese oxides and phenolic compounds. Finally, the reductive dissolution of natural minerals in soils in tropic and subtropic zones by phenolic compounds in comparison with corresponding synthetic minerals it also given.

本文的研究得到了广东省自然科学基金《广东土壤与有机污染物间界面反应及污染土壤的同步修复》(编号：020615)和广东省科学院2000年度优秀青年科技人才基金《热带亚热带环境质量评价的矿物标识体系研究》的资助。

Results show that hydroxyl group existing in benzene ring, sulfanilamide being adjacent to hydroxyl group and benzene ring itself are main active sites of this kind of compounds probably. Orbit energy distributing on groups and the number of net charge of N atom determine compounds' insecticidal activity directly.

计算结果表明，该类化合物中苯环上的羟基、羟基相邻的磺胺基团以及与该苯环的组合很可能是该类化合物的主要活性部位，分布在基团上的前线轨道以及N原子的净电荷的多少直接决定化合物的杀虫活性。

By azo compound became chromophore monomer disperse red -19, and through Sulfonyl of the compound was synthesized by the C, and through 1HNMR its structure was characterized, the results show that the synthesis of compounds C of very high purity, synthetic polymers can meet at the request of the monomer, but also of the compound D, through 1HNMR its characterization, showed that high purity compounds D, is expected to be functional after the adoption of To all the excellent performance PEEK electro-optic polymer materials.

本文通过偶氮化合成了生色团单体分散红-19，并通过磺酰化反应合成得到了化合物C，并通过核磁共振氢谱对其结构进行了表征，结果表明，所合成的化合物C的纯度非常高，完全能满足聚合物合成时对单体的要求，同时也合成了化合物D，通过核磁共振氢谱对其结构表征，显示化合物D纯度很高，应有望通过后功能化合成出各种性能优良的聚醚醚酮电光高分子材料。

The analysis of SAR reveals that the activities of target compounds are closely associated with the electron-withdrawing substituents at the para position of 1-aryl-1, 2, 4 -triazoles as well as with the substituents such as sulfonyl and methylthio groups at the 3 position of 1, 2, 4 -triazoles; And the introduction of sulfamoyl moiety at the para position of 5-aryl-1,2,4-triazoles also has significant influence on the anti-inflammatory activity of these compounds.

构效关系分析发现，在三唑环1位芳基的对位引入F、Cl、Br吸电子基团以及3位引入磺酰基和甲硫基，对抗炎活性有重要的意义；在三唑环5位芳基的对位引入氨磺酰基，对抗炎活性有较大影响。

In this case the most important are nitrogen compounds , then follow compounds of oxygen and sulfur.

在这种情况下最重要的是氮化物，其次才是氧化物和硫化物。

All the targe compounds had anti-inflammatory activity test. The preliminary bioassay test suggested that some of these compounds should show good anti-inflammatory activity. They are worth investigation in further, and may gradually develop into a new generation of practical anti-inflammatory drugs.

3对所合成的目标化合物进行抗炎活性筛选，发现部分化合物有较强的抗炎活性，值得进一步深入研究，并逐步开发成实用的新一代抗炎药。

It has offered the information of the boiling points of the chemical compounds, and it is helpful to reutilize them after their separation by rectification. The results showed that the main compounds of the heavy cut of terpineol were longifolene and βcaryophyllene. They are from the raw material, terpinene oil.

松油醇的合成工艺方法主要有两种：一种是一步法，即松节油在酸催化作用下直接进行水合反应生成松油醇；另一种是二步法，即松节油首先在酸催化作用下水合成萜二醇，再经稀酸催化脱水生产松油醇。

Environmental contaminants, such as anthropogenic chlorinated compounds tri-chloroethylene and tetrachloroethylene, can be reductively dehalogenated to less chlorinated ethenes or innocuous compounds by micro-organisms through halorespiration under anaerobic condition.

中文摘要环境中的污染源像是三氯乙烯和四氯乙烯这些含氯碳氢化合物可在厌氧的环境之下，经由微生物的卤化呼吸作用将其进行还原性脱氯使其变成含氯较低的含氯碳氢化合物，或者无毒害性的物质。

The major sulfur containing compounds identified in the odor concentrate of cultured prawn were thiazole compounds.

养殖对虾中以GC-MS鉴定的含硫化合物主要是噻唑类化合物。

Results Fourteen new thiourea compounds were synthesized and twelve of them were new compounds.

结果合成了14个取代嘧啶基硫脲类化合物，其中12个化合物为首次报道的新化合物。

There are different types of personal loans available.

有许多不同类型的个人贷款优惠。

The above mentioned teaching model of spiral rising can be used to avoid rigidness in teaching.

上述螺旋式上升的教学模式，可以避免教学形成模式後的僵化现象。