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.

本文的研究得到了廣東省自然科學(xué)基金《廣東土壤與有機污染物間界面反應(yīng)及污染土壤的同步修復(fù)》(編號：020615)和廣東省科學(xué)院2000年度優(yōu)秀青年科技人才基金《熱帶亞熱帶環(huán)境質(zhì)量評價的礦物標(biāo)識體系研究》的資助黄色a,亚洲a。

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.

計算結(jié)果表明黄色高清无码视频，該類化合物中苯環(huán)上的羥基、羥基相鄰的磺胺基團以及與該苯環(huán)的組合很可能是該類化合物的主要活性部位日韩中文欧美在线，分布在基團上的前線軌道以及N原子的凈電荷的多少直接決定化合物的殺蟲活性一级特黄AA级毛片免费看。

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.

本文通過偶氮化合成了生色團單體分散紅-19，并通過磺?1精品国产免费；磻?yīng)合成得到了化合物C黑人三级片免费看，并通過核磁共振氫譜對其結(jié)構(gòu)進行了表征，結(jié)果表明最新最近亚洲中文字幕，所合成的化合物C的純度非常高人人爽人人澡人人，完全能滿足聚合物合成時對單體的要求，同時也合成了化合物D精品毛片二区，通過核磁共振氫譜對其結(jié)構(gòu)表征国产福利自，顯示化合物D純度很高，應(yīng)有望通過后功能化合成出各種性能優(yōu)良的聚醚醚酮電光高分子材料99热W亚洲精品国产99。

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.

構(gòu)效關(guān)系分析發(fā)現(xiàn)色色肉肉视频，在三唑環(huán)1位芳基的對位引入F、Cl久久免费网址、Br吸電子基團以及3位引入磺酰基和甲硫基日韩中文福利片观看，對抗炎活性有重要的意義最新中文字幕在线视频网站；在三唑環(huán)5位芳基的對位引入氨磺酰基a黄大片久久网，對抗炎活性有較大影響在线观看中文字幕网。

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

在這種情況下最重要的是氮化物，其次才是氧化物和硫化物日韩女神精品自拍视频。

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對所合成的目標(biāo)化合物進行抗炎活性篩選天天视频在线50页免费观看，發(fā)現(xiàn)部分化合物有較強的抗炎活性，值得進一步深入研究欧美性爱大屌，并逐步開發(fā)成實用的新一代抗炎藥人人爽爽人人爽人人精品。

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.

松油醇的合成工藝方法主要有兩種：一種是一步法，即松節(jié)油在酸催化作用下直接進行水合反應(yīng)生成松油醇轻点好疼好大好爽视频网站；另一種是二步法欧美大屁股XXXX潮喷，即松節(jié)油首先在酸催化作用下水合成萜二醇国产va精产，再經(jīng)稀酸催化脫水生產(chǎn)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.

中文摘要環(huán)境中的污染源像是三氯乙烯和四氯乙烯這些含氯碳?xì)浠衔锟稍趨捬醯沫h(huán)境之下女生张开大腿让男生桶，經(jīng)由微生物的鹵化呼吸作用將其進行還原性脫氯使其變成含氯較低的含氯碳?xì)浠衔锶蘸扇斯镌谙呤悠倒劭疵夥巡シ牛蛘邿o毒害性的物質(zhì)。

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

養(yǎng)殖對蝦中以GC-MS鑒定的含硫化合物主要是噻唑類化合物18禁网站网址。

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

結(jié)果合成了14個取代嘧啶基硫脲類化合物15yc午夜福利在线视频，其中12個化合物為首次報道的新化合物。