硫代的

Antioxidative activity of three naringin-metal complexes was characterized by applying methods of 1,1-diphenyl-2-picrylhydrazyl radical and thiobaribituric acid.

采用二苯代苦味肼基自由基法和硫代巴比妥酸法对3种柚皮苷-金属配合物的抗氧化活性进行了测定。

Four extracting agents for Lanthanides/Actinides separation , dialkyldithiophosphinic acids, were synthesized from PSCl3 and alkyl halide by Grignard reaction, sulfuration and acidification.

以PSCl3和卤代烷为原料，经格氏反应、硫化和酸化合成了用于镧/锕分离的4个萃取剂——二烷基二硫代次膦酸，其结构经NMR，IR和MS表征。

The influences of the sulfide source and Na_2S_2O_3 solution concentration on the preparation of nanometer mercuric sulfide/amidoxime composite fiber were investigated,and the antibacterial properties of different fibers to staphylococcus aureus and bacillus subtilis were studied.

探讨了硫源和硫代硫酸钠溶液浓度对制备纳米硫化汞/偕胺肟复合纤维的影响，并研究了纤维对金黄色葡萄球菌和枯草芽孢杆菌的抗菌性能。运用红外光谱仪及扫描电镜对样品进行了表征。

These possible mechanisms for the synthetic reaction and thesubstitution reaction of α-hyperiodine group arsonium ylides were proposed.

将它与亲核试剂作用；产生α-硒代或α-硫代胂叶立德，提出了先配位后配体偶联的可能反应机理。

The results showed polymeric diaryliodonium salts were effective aryl ion transfer reagents. Thirdly, a new type polymer supported hypervalent iodine reagents poly { [4-Hydroxy iodo] styrene} has been developed. It was an effective oxidative reagent, and could be applied to the one pot synthesis of 4-arylthiazoles.

然后，我们以聚苯乙烯羟基对甲苯磺酰氧基碘苯为原料，成功制备了一类新型聚合物高碘试剂—聚苯乙烯负载的炔基碘盐，并研究了其作为炔基转移试剂的有效性：(1)该试剂可对硫、氮、硒等负离子进行亲电炔基化反应，合成炔基亚砜、0，0-二烃基二硫代磷酸炔基酯、1-苯乙炔基苯并噻唑以及炔基硒醚。

This is because of the high concentration in Brassicas of substances known as glucosinolates which are metabolized to cancer preventive substances known as isothiocyanates.

这是因为其中含有高浓度的硫代葡萄糖酸盐，它可以代谢成癌症的预防性物质：异硫氰酸盐。

This is because of the high concentration in Brassicas of substances known as glucosinolates which are metabolized to cancer preentie substances known as isothiocyanates.

这是因为其中含有高浓度的硫代葡萄糖酸盐，它可以代谢成癌症的预防性物质：异硫氰酸盐。

Isothiocyanates are their degradation products,which have shown a series of biological and chemical characteristics.

硫代葡萄糖甙是存在于十字花科植物中的次生代谢产物，可作为杀虫剂、抗微生物制剂和天然熏蒸消毒剂，其降解产物异硫氰酸酯除具有强烈的辛辣气味可作为调味品外，还具有抑菌、抗病毒和抗癌活性。

Expanded MSCs were induced to differentiate into nerve cells withthree different treatment protocol in the prensent study . On the following day, the medium was replaced with preinduction medium consisting of DMEM, 20% FCS, and 10 ng/ml basic fibroblast growth factor. After 24 h, the preinduction medium was removed, the cells were washed twice with PBS, and neuronal induction medium containing DMEM supplemented with 2% DMSO and200 m bu-tylated hydroxyanisole was added. In later experiments, we used DMEM with 5 mM p - mercaptoethanol or sulfo - glycerine as an alternative neuronal induction medium for the same incubation.

将待诱导分化的MSCs按0.4x10~6／ml接种于事先放置有消毒盖玻片的六孔板内制备细胞爬片，分别采用三种不同的方法诱导第2代至10代的MSCs向神经细胞分化，即方法1先用含bFGF的培养基进行预诱导，之后再用含叔丁基对羟基茴香醚，和二甲亚砜的无血清培养基进行诱导；方法2和方法3用B-巯基乙醇和硫代甘油进行预诱导，然后不同浓度的上述物质进行正式诱导。

Objective: to extract pungent flavours from the abandoned mustard skin.To study in the optimum hydrolytic conditions of glucosinolates in mustards skin.

目的：从废弃的芥菜皮中提取辛辣风味物质(硫代葡萄糖苷酶解产物异硫氰酸酯)，研究其最佳水解条件，为天然调味品生产提供新的原料来源和理论参考。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐