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In order to measure the tuning wavelength of a frequency-doubled Nd:YAG laser,strong absorption lines of molecular iodine near 532nm was adopted to provide the absolute reference for frequency stabilization.

为了精确测量倍频Nd:YAG激光器的调谐波长,采用碘分子在532nm附近的强吸收谱线作为频率稳定的绝对参考谱线,建立了以碘蒸气为标定物的激光调谐波长测定系统,实际测量了碘蒸气吸收谱线。

Objective To investigate the influence of DIT on the proliferation of human thyrocytes and compare DIT with KI.

目的 研究不同浓度的有机碘对体外培养的人甲状腺细胞增殖情况的影响,并且和无机碘KI)进行比较,以探讨一种更安全有效的补碘制剂。

Experimental process: jing and 3- methyl -2- methyl ethyl ketonesynthesizes by the benzene zong; Again the glacial acetic acidcatalysis produces 2, 3, 3 - trimethyl - 3H - yinduo; Again has thealkylate response production yinduo iodide after the methyl iodide;The iodide takes off molecular HI under NaOH to become freejier thealkali; Adds 5 - nitryls salicylic aldehydes in the ethyl alcohol forthe solvent under if to respond finally produces 6 '- the nitryl yinduolin spiral benzene and pinan; Through the infrared spectrum andthe ultimate analysis irrevocably proved its structure, and studiedthe annulus with to open the annulus the light to send changes colorthe performance, explained in different solvent medium ultravioletabsorption spectrometry solvent effect, and the comparisondiscoloration the response speed number difference, finally mixed itadds to the methyl methacrylate, the peroxidation benzoin formyl in the plexiglass, tested 6 '- the nitryl yinduolin spiralbenzene and pinan in the glass fatigue resistance, thethermostability.

实验过程:由苯肼和3-甲基-2-丁酮合成腙;再冰醋酸催化生成2 ,3 ,3—三甲基—3H—吲哚;再经过碘甲烷发生烷基化反应生成吲哚碘化物;碘化物在NaOH下脱去一分子HI成为费歇尔碱;在乙醇为溶剂下加5-硝基水杨醛与其反应最后生成6'—硝基吲哚啉螺苯并吡喃;通过红外光谱和元素分析确证其结构,并研究了环体与开环体的光致变色性能,解释了在不同溶剂介质中紫外吸收光谱的溶剂效应,并比较褪色反应速率数的差异,最后将其掺加到甲基丙烯酸甲酯,过氧化二苯甲酰有机玻璃中,测试6'—硝基吲哚啉螺苯并吡喃在玻璃中的抗疲劳性、热稳定性。

High iodide intake may aggravate patient's clinical symptoms such as thyrocele and ophthalmopathy, but there is no relation between level of UI and thyroid function .Improper iodine supplement to AITD patients may strengthen the immune function disorder .The abnormal increase of cytokine IL-1? and expression of CD80、 HLA-DR on PBMC may involve in the mechanism.

高碘可能加重了AITD突眼、甲状腺肿大等症状,但与甲状腺功能状态没有明显关系;本研究还提示对AITD不适当的补碘可能会导致甲状腺局部乃至全身的免疫功能失调,IL-1β等细胞因子和PBMC表达的HLA-DR、CD80异常与高碘导致的免疫紊乱可能有一定关系,值得进一步探讨。

Using "materfamilias- family-community"and "school-student-community" health education pattern, the healthy education pass rateof children and women and people\'s behavior change rate has been improved significantly.7、Taking iodine oil can improve the status of iodine nutrition and protect newbornsnot be harm by iodine deficiency in minority region with problem of non-iodized salt.

应用以"家庭主妇-家庭-社区"和"学校-学生-家庭-社区"两种主要健康教育模式,并结合多种形式的健康教育方式,干预前后,儿童和家庭主妇碘缺乏病健康教育知识知晓率均有显著提高,群众的行为转变率也有了提高。7、在碘盐措施落实不到位的少数民族地区采取应急补碘措施能有效的改善重点人群的碘营养状况,保护下一代免受缺碘造成的脑损伤。

After more than 20 years I-supplement, typical congenital myxedema has almost been controled in our country.

在政府二十多年的全民补碘后,碘缺乏所致的典型的克汀病已基本得到控制,但是仍有许多亚临床克汀病弱智儿童出现,故认为硒可能是亚克汀病的一个重要的碘外因素。

Bstract: Objective To investigate the influence of DIT on the proliferation of human thyrocytes and compare DIT with KI.To study a good kind of supplement to USI that was safe and effective.

Q3aUh' BF0 摘要:目的研究不同浓度的有机碘对体外培养的人甲状腺细胞增殖情况的影响,并且和无机碘KI)进行比较,以探讨一种更安全有效的补碘制剂。

Analysis on main points for determination of chlorine dioxide by iodometric method ;2. The experiment results show: To measure sulfide in wastewater by iodometric method may have errors because the interferent can not be removed.

用碘量法测定废水中的硫化物,可能因无法消除干扰而使测定结果存在较大误差;对于同一废水样品,当碘量法和亚甲基蓝分光光度法的测定结果存在显著性差异时,可用Pb2半定量法进行判定;对于某些化纤企业的废水,用氢氧化钾-乙醇溶液洗涤沉淀,可消除碘量法测定的干扰。

We have developed a simple and easy-handling procedure for copper-catalyzed cyanation of aryl halides using K4[Fe_6] as the cyanide source. The present procedure has ligand- and base-free advantages, and was accomplished under the conditions of exposure to the air without degassing of the solvent.4. We carried out the selective control of preparation for phenyl ether and phenol from iodobenzene with 10 mol% of Cu_2·H_2O as the catalyst under the condition of exposure to air.

这个程序有无配体无碱的好处,并能够在暴露于空气的条件下进行,溶剂也不用脱气。4、空气气氛下,用10 mol%的Cu_2·H_2O催化碘苯偶联,实现了制备二苯醚和苯酚的选择性控制:即在有(来源:Aa955BC55论文网www.abclunwen.com)机溶剂NMP中实现了碘苯直接制备二苯醚的Ullmann反应,在H2O中实现了碘苯直接制备苯酚。

Firstly, phenyliodine diacetate was immobilized to the 2% cross-linked polystyrene or the liner polystyrene resin. The more iodine the resin had, the lower conversion to phenyliodine diacetate. We made our endeavor to extend the range of useful application of polystyrene supported phenyliodine diacetate in organic synthesis:(1) the reagent was used as an effective reagent of carbonyl regeneration from oximes and semicarbazones of ketones.(2) the reagent was also applied to the synthesis of 1, 3, 4-oxadiazoles, 1, 3-disubstituted-2-pyrazoline, 2-arylbenzoxazole from aldehyde N-acylhydrazones, aldehyde hydoazones and phenolic Schiff's bases respectively.

首先,我们以2%交联的聚苯乙烯和线性的聚苯乙烯树脂为载体,制备了聚合物负载的二醋酸碘苯,通过研究发现:(1)聚苯乙烯二醋酸碘苯是酮肟、缩氨脲有效的去保护试剂,不仅芳香酮,脂肪酮和α,β不饱和酮的肟、缩氨脲也能顺利转化为相应的酮,实现酮基的再生;(2)我们还利用此试剂,分别与醛的N-酰基苯、N-酰基苯腙及邻羟基芳亚胺反应,在温和的条件下发生成环反应,以良好的产率生成1,3,4-噁二唑、吡唑啉和二取代苯并噁唑等杂环化合物;(3)聚苯乙烯二醋酸碘苯还可有效地将邻羟基芳酮的酰腙经氧化、重排成1,2-二酰基苯。

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

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