碘的

A dye recycled photosensitization system has been designed. As a result of studies in the mechanism of electron transfer reaction of xanthene iodonium salt, it is proposed that the dye-recycled process consists of three-step reactions during the photosensitization: The oxidative fading product of dye is formed through electron transfer under irradiation; In the presence of H-donor, product changes into acidic leuco dye product; Product undergoes deprotonization under action of base to regenerate initial dye.

本文设计了染料循环再生的光敏反应体系，通过对占吨碘翁盐电子反应机制的深入研究，提出了占吨染料在光敏反应过程中的染料再生循环，它依次由三个反应过程组成：在光作用下，通过电子转移反应，产生染料氧化褪色体；在H给体存在下，通过H转移反应，使产物转化为染料酸式隐色体；在碱作用下，发生去质子反应，染料再生回复到染料的起始结构。

Starch has gelatinization effect in hot water, elevatory and amylaceous grain is easier when temperature burst, the degree of polymerization that brings about starch is reduced, the opposite element quantity of amylaceous grain is reduced, as the change of amylaceous grain, the package that iodine and starch fashion adds up to content color to also can produce a series of change.

淀粉在热水中具有糊化功能，温度时升高淀粉颗粒更轻易破裂，导致淀粉的聚合度降低，淀粉颗粒的相对分子量减小，随着淀粉颗粒的变化，碘和淀粉形成的包合物颜色也会发生一系列变化。

METHODS: The concentration of ozone that was transmitted by ozone generator at different time was determined by using iodine titrimetric method. According to the bactericidal assay of quantitative vehicle, the bacteria on the ozonized vehicles and unozonized vehicles was washed, 50μl eluant was seeded on the TSA plates. The TSA plates were put into the anaerobiotic incubator (90% N2, 10% CO2, 37℃). After 24 to 48 hours, the CFU on the plate was counted.

用碘滴定法测定打开臭氧发生器不同机组及不同时间时的臭氧浓度，按载体定量杀菌试验，将经臭氧作用的载体与相同环境下未经臭氧作用的载体上的细菌洗下，各取洗脱液50μl，接种于TSA平板并置厌氧箱(90%N2， 10%CO2， 37℃)培养24~48h后，进行活菌菌落计数。

Synthesis and liquid crystalline behavior of three recently reported mesogenic block-molecules,namely polyhydroxy 1-benzoylaminopropane-2,3-diols Ⅰ,star-shaped pentaerythritol tetrabenzoates Ⅱ and calamitic bolaamphiphiles with lateral chains Ⅲ which are constituted of anisometric block,amphiphilic block and alkyl or perfluorinated chains with different topologies are reviewed in this article.

这些分子由各向异性嵌段、两亲性嵌段和烷基链以不同的拓扑形式组合而成，其合成的关键步骤是Pd(0)催化下碘代全氟烷烃对双键的自由基加成反应以及Pd(0)催化的偶合反应。

It is characterized by that firstly, preparing silver bromiodide flake microcrstalline emulsion, then utilizing silver halide solution to corrode core of silver bromide to prepare the invented hollow silver bromiodide flake microcrystal whose form is triangle or hexagon and whose surface possesses small holes and pits, and the core of the microcrystal is silver bromide and its external layer is silve bromidiode, its iodine content is 1-10 mol%, and the light sensitivity of the emulsion is greatly raised.

首先制备溴碘化银薄片微晶乳剂，再利用卤化银溶剂使溴化银内核腐蚀，制备成的中空溴碘化银薄片微晶呈三角形或六边形，表面上有小孔和凹坑，微晶的内核为溴化银，外层为溴碘化银，其碘含量为1―10mol％；无论从色盲乳剂，还是经光谱增感乳剂的感光度都有大幅度的提高。

It was observed that the optimum temperature for the fluorous biphasic regioselective nitrations of toluene, ethylbenzene, flurobenzene, chlorobenzene, bromobenzene, odobenzene and diphenyl ether were 80℃, 60℃, 60℃, 60℃, 80℃, 80℃ and 70℃ respectively. The catalyst had almost no activity when the reaction system contained 25% of water. Simultaneously, increasing the volume ratio of fluorous phase and organic phase in the system in which the fluorous phase can miscible with organic phase could decrease ortho-para ratio.

发现甲苯、乙苯、氟苯、氯苯、溴苯、碘苯加二苯醚的最佳氟两相选择性硝化温度分别为80℃、60℃、60℃、60℃、80℃、80℃和70℃，当加入25%的水时，催化剂已基本失去活性，在氟相和有机相能完全互溶的体系中升高氟相和有机相的体积比有利于降低邻对位比值。

A mild spray with 2,3,5-triiodobenzoic acid brought them on nicely; but a stronger dose caused the plants to release ethylene, which digested the cell wall between leaf and stem and defoliated them.

适量的喷洒2，3，5-三碘苯甲酸可以达到令人满意的效果；但是过量的喷洒引起植株释放乙烯，从而溶解叶子和茎干间的细胞壁，造成秧苗脱叶。

The side-effects of the chemical were horrific: with particles lodged in her cranium and forming cervical cysts, Dorine suffered enormous and mounting pain.

X 光技术中需要用射线不能穿透的碘化油作对比剂，而这种化学物质会带来可怕的副作用：粒子留存在她的颅腔中，同时还结成宫颈囊肿，巨大的病痛愈演愈烈，残酷地煎熬着多莉安。

The slices were divided into two groups. In group I, the slices were perfused with 5-HT(subscript 2A) receptor excitomotory-(2,5-dimethoxy-4-iodophenyl)-2-aminopropane dissolved in modified Kreb's solution. In group Ⅱ, the slices were perfused with ketanserine specific antagonist of 5-HT(subscript 2A) receptor. The effects of DOI and ketanserine on RRDA were observed.

标本分2组：第1组使用含5-HT(下标 2A)受体特异激动剂2，5-二甲氧基－4-碘苯基丙烷的Kreb's液灌流脑片，观察其对RRDA的影响；第2组使用含5-HT(下标 2A)受体特异拮抗剂酮舍林的Kreb's液灌流脑片，观察其对RRDA的影响。

Results all the experimental groups of rat had got colloid goiter and the higher concentration of iodine in food,as the lower of height of thyroid cell and the gigger of area of follicle.AgNOR counting of abnormal hyperplasia area in all the experimental groups was increasing.

结果实验组出现了胶质性甲状腺肿，不典型增生出现的百分率增加，甲状腺细胞的高度随饲料含碘量的增加而逐渐降低；其滤泡腔面积逐渐增大，实验组不典型增生区域的AgNOR颗粒数目增多。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。