芳芳

There six chapters in this dissertation: the overview on the study of probing for reactive oxygen species, spin-labelled fluorophore as probe for free radicals, Fe -EDTA chelate-induced aromatic hydroxylation of terephthalate as a new method for the evaluation of hydroxyl radical-scavenging ability, study of fluorimetric method for the determination of peroxynitrite, study of spiro-formed rhodamine B hydrazide as a novel fluorescent probe in analytical chemistry, the conclusion and prospect of the present research work.

本论文分六章，包括生物活性氧表征的研究进展、自旋标记荧光探针表征自由基的研究、利用Fe-EDTA引发对苯二甲酸芳环羟基化反应评价抗氧化剂清除羟基自由基能力的研究、荧光法表征过氧亚硝酸根的研究、螺环型罗丹明B酰肼化合物作为新型荧光探针的性质及应用的研究、结论与展望。

The reductive coupling of aryl halide s to form the corresponding biaryls was effected with high selectivity in water,using formic hydrazide as a reducing agent in the presence of a catalytic amount of Pd/C.

在Pd/C催化下，以甲酰肼为还原剂，卤代芳烃通过还原偶联反应能高选择性地合成相应的联苯化合物。

New compounds of the type of N--N'-(2,4-dichlorophenyloxyacetyl)-semicarbazides were synthesized by a series of reactions of preparing organic isocyanates by Curtius rearrangement with 2,4- dichloro aryloxyacetic acid hydrazide using one-pot procedures.

以芳香取代酸为原料，用Curtius重排的方法合成异氰酸酯，直接与2，4-二氯苯氧乙酰肼作用，一锅法合成了4种N-取代芳基-N'-(2，4-二氯苯氧乙酰基)氨基脲类化合物。

In chapter 3, Fe-EDTA chelate-induced aromatic hydroxylation of terephthalate as a new method for the evaluation of hydroxyl radical-scavenging ability was studied.

第三章利用Fe-EDTA引发对苯二甲酸芳环羟基化反应建立了一种评价抗氧化剂清除·OH能力的新型荧光分析法。

Last year's "Tsubaki Sanjuro" was Yoshimitsu Morita's shot-by-shot recreation of the 1962 original, though Yuji Oda gave a lighter spin to the role of the canny, hygienically challenged ronin played by Toshiro Mifune.

去年的《椿三十郎》是森田芳光对1962原版的亦步亦趋的消遣，然而织田裕二对三船敏郎扮演的狡黠、邋遢的浪人作了更为轻浮的演绎。

Please do not shorten hyphenate or alter this in any way.

请不要缩写、用连字符连接或者使用任何替换的芳式。

Seco-iridoids and fragrant constituents,such as linalool,benzyl alcohol and their esters are major princi-ples of Jasminum sambac ,which has been found to possess pharmacological effects such as sedation,hypnogenesis and anti-bacterial activities.

茉莉主要含有裂环环烯醚萜和挥发性香味成分如芳樟醇、苯甲醇及其酯类等，具有广泛的药理活性如镇静、催眠、抗菌等。

Will come to rui Fang town water nan hole gold waterfall ,this seat at road side recite lean on have not ear teapot mountain cascade waterfall, because includes abundant pyrite with sulphur arsenic copper mine, lets earths surface submit golden, too is form yin and yang seas chief water source, ases gallop waterfall current let out but under shi jiu Like a piles up with gold mines waterfall, dazzling affecting, a screen limpid water curtain of straight rush gold yellow earths surface let people for a time rise play water idea, justs because heres water quality include huge amount of heavy metal material, for oneself safety, or prudent, gold waterfall locates in square self-improvement bridge side and long benevolence digging under this mountain six pithead, because in the early time at headstream picks up copper mine, mountain spring water with rainwater infiltration, slag sand deposits stream bed, and has fungus adhere multiply, hypsography differences compares big so form gold yellow waterfall spectacular sight, gold waterfall is gold melon stone local very characteristic a scenic spot, usually too very easy meets come this place screen nuptial dress new one.

来到瑞芳镇水湳洞的「黄金瀑布」，这座位在公路旁背倚无耳茶壶山的层叠瀑布，因含有丰富的黄铁矿与硫砷铜矿，让地表呈金黄色，也是形成阴阳海的主要水源，当奔腾的瀑水流泄而下时就像是一座堆满金矿的瀑布般，耀眼动人，一幕清澈的水帘直冲金黄色的地表让人一时兴起玩水念头，不过由於这里的水质含有大量重金属物质，为了自身安全，还是三思而后行，黄金瀑布位於本山六坑口下方的自强桥畔及长仁矿区，因为早期在上游采铜矿，山泉水与雨水渗入，矿砂沉积溪床，又有菌类附着滋生、地势落差较大所以形成金黄色的瀑布奇观，黄金瀑布是金瓜石当地很有特色的一个景点，平时也很容易遇到来此地拍摄婚纱的新人。

C94 Stage Art of Mei Lanfang, imperforate stamps in horizontal pairs, all with corner wide margins, rare, OG, VF

纪94梅兰芳舞台艺术无齿邮票横双连，均带直角宽边，极少见，原胶，上品

Mei for the moment to make a quick profit and the market impetuousness film fear into the hearts ofa clear-headed agent.

梅兰芳》为当下急功近利的电影市场和浮躁惶惑的人心注入了一剂清醒剂。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。