碘化

In the medium of H2SO4 with KBr as the catalyst, the color of Cresol Red oxidized by iodate can be faded, and the degree of color fading is proportional to the concentration of iodine and the linear range of determination is 20 μg/25 mL~50 μg/25 mL.

在硫酸介质中、在溴化钾催化条件下，碘酸根对甲酚红有褪色作用，且褪色的程度与碘酸根的量有关，碘定量测定的线性范围为20μg/25mL～50μg/25mL，检出限为6。

Increasing the modified time from 0 day to 4 days, the surface contact angle indicated by glycerol increased from 88.7° to 99.0°, indicated by water from 54.2°to 69.1° and indicated by diazomethane declined hum 40.0° to 31.9°.

结果表明，改性0-10d的木材吸水率从138.4%下降到111.1%；木材分别经过1d、2d和4d的硅烷化改性，甘油表面接触角从未改性时的88.7°上升到99.0°，蒸馏水表面接触角从54.2°上升到69.1°，二碘甲烷则从40.0°下降到31.9°。

Chapter two: Using 5-(4-aminophenyl)-10,15,20-triphenylporphyrin as thestarting compound, the classical diazotization of aniline and the resulting reaction ofdiazo salts were applied to porphyrin for the first time, and a series of asymmetriclysubstituted meso-tetraarylporphyrins including 5-(4-chlorophenyl)-10,15,20-triphenylporphyrin, 5-(4-iodinphenyl)-10,15,20-triphenylporphyrin, 5-(4-cyanophenyl)-10,15,20-triphenylporphyrin, 5-(4-bisphenyl)-10,15,20-triphenylporphyrin and 5-(4-hydroxylphenyl)-10,15,20-triphenylporphyrin were synthesized.

第二章：在已合成的5-(4-氨基苯基)-10，15，20-三苯基卟啉基础上，首次将芳胺的重氮化及重氮盐反应应用于卟啉，合成了5-(4-氯苯基)-10，15，20-三苯基卟啉、5-(4-碘基苯基)-10，15，20-三苯基卟啉、5-(4-氰基苯基)-10，15，20-三苯基卟啉、5-(4-联苯基)-10，15，20-三苯基卟啉和5-(4-羟基苯基)-10，15，20-三苯基卟啉等一系列不对称取代的meso-四芳基卟啉。

The reaction of perfluoroalkyl bromide and a,w-perfluoralkylene dibromide in sulfinatodehalogenation system with olefins and the differences in behavior between perfluoroalkyl bromides and their corresponding iodides are reported.

本文报道溴代全氟烷和α，ω-二溴代全氟烷在亚磺化脱卤反应体系中与烯烃的反应及其与相应的碘代全氟烷的区别。

The influence of each condition on the reaction speed and yield was studied, and the optimal conditions were: the ratio of the amount of substance of aromatic amine and heptafluoro-isopropyl iodine was 1:1.1~1.5, the amount of substance of sodium dithionite, sodium bicarbonate, aniline compounds were respectively 1.1~1.3, the amount of substance of phase transfer catalyst TBAB and aniline compounds was 0.05~0.1, the concentration of aniline compound was 0.5~1.0 mol/L, reaction temperature was 10~20 ℃, and the solvent was aether.

最佳结果为：芳胺与七氟异丙基碘的物质的量比1：1.1~1.5，连二亚硫酸钠、碳酸氢钠与苯胺的物质的量分别为1.1~1.3，相转移催化剂四丁基溴化铵与苯胺的物质的量比在0.05~0.1，溶剂总用量使苯胺浓度在0.5~1.0 mol/L；反应温度10~20℃；溶剂采用乙醚。取代基供电子性越强，反应时间越短，产率越高；氨基的对位优先反应，氨基的邻位较难发生反应；且七氟异丙基总是优先取代在芳环电子云密度较高的位置上。

The expert thinks, corpus luteum of the leaf before iodine can stimulate hypophysis makes element, promote ovarian and follicular corpus luteum to change, make level of the estrogen inside human body is reduced thereby, restore ovarian normal function, correct endocrinopathy, eliminate the hidden danger of mammary gland hyperplasia.

专家认为，碘可以刺激垂体前叶黄体生成素，促进卵巢滤泡黄体化，从而使人体内雌激素水平降低，恢复卵巢的正常机能，纠正内分泌失调，消除乳腺增生的隐患。

With 2-cyano-4-nitro-aniline as raw material, 2-cyano-4-nitro-6-halogen- anilines have been prepared by direct halogenation.

以2-氰基-4-硝基苯胺为原料，用直接卤化法研制成2-氰基-4-硝基-6-氯苯胺、2-氰基-4-硝基-6-溴苯胺、和2-氰基-4-硝基-6-碘苯胺。

An iodide that is used in photography, in seeding clouds to make rain, and in medicine.

一种碘化物，用于摄影、催云化雨和医药。

In HCl medium, iodate oxidizes hydroxylammonium chloride to form nitrite, which can produce a red azo dye with the reaction of p nitroaniline and α naphthylamine.

基于碘酸根在稀盐酸介质中氧化盐酸羟胺产生亚硝酸根，而亚硝酸根和对硝基苯胺重氮化后可以与α-萘胺偶联产生红色偶氮染料，提出了分光光度法测定碘的新方法。

The research results also pointed out that the complex compound of iodine and amylum is not stable, and has a regular fadding process; the concentration of phosphate buffer solution has a serious inffluence on the fadding effect of the extractive solution of plant leaves.

取一定部位的功能叶，用打孔器取40个叶圆片，研磨加水后离心制得植物材料提取液，取一定量上清液加到3ml含有碘、叠氮化钠和淀粉试剂的反应混合液中，30秒后测定1分钟内吸光值的变化量。

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。