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可氧化性

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As a new composite material, conducting polymer composite film has electrical and optical properties of metal and inorganic semiconductor and flexile mechanical performance and processibility of organic polymer as well as electrochemical redox activity.

导电聚合物复合膜作为一类新颖的复合材料,既具有金属和无机半导体的电学和光学特性,又具有有机聚合物柔韧的机械性能和可加工性,还具有电化学氧化还原活性。

Six experimental stages were designed in our procedure, those are:(1) metabolite recovery and tested sample preparation: the metabolites were recovered by Amberlite XAD-2 absorption, followed by MeOH elution and solvent concentration;(2) antioxidant detection and strain selection: samples were quantitatively analyzed by the inhibition effects on formation of lipid peroxides and TBARS to screen the strains able to produce antioxidants. According to the established screening methods, we chose out a strain of actinomycetes, designed as AMBL-029C;(3) antioxidant purification: the fermentation broth was recovered by a series of separation techniques including centrifugation, Amberlite XAD-2 absorption, followed by MeOH elution and a successive TLC purification. The resulting primary purified compound [temperately designed as AMBL-029C-TS] was further analyzed by HPLC to monitor its purity;(4) physical-chemical characteristics: judging from the acid-base fractionation experiments, and the pH and temperature stability tests, the compound was deduced to be a acidic compound with the properties of low polarity and highly pH and temperature stable;(5) mechanism of the antioxidant: in comparison with some other known antioxidants, TS was subjected to investigate its antioxidant mechanism, together with BHT,-tocopherol, as well as two streptomyces metabolites, homogentisic acid and -phenylpyruvic acid, which were previously isolated as the natural antioxidants in our laboratory.

针对本实验目的,我们设计了以下的实验步骤﹔(1)二次代谢物回收及检测样本处理:我们将发酵所得的培养上清液,利用疏水吸附性树酯Amberlite XAD-2吸附回收,并以甲醇溶离及真空减压浓缩脱水等方式处理,以取得提供抗氧化活性筛选之检测样本;(2)抗氧化活性检测及菌种筛选:以「过氧化脂质」和「硫丙二醯尿」的生成量进行定性定量分析以作为抗氧化物质生产菌筛选之用;经此筛选程序,我们选获了具有抗氧化物质高生产力的菌株,命名为AMBL-029C;(3)抗氧化物质的分离纯化:针对生产菌株的发酵回收处理液,以矽胶薄层色层分离法经物质层析纯化后,并以高效能液相层析法(High performance liquid chromatography;HPLC)分析物质可得一初级纯化物质,命名为AMBL-029C-TS;(4)抗氧化物质的物理化学性质分析:由酸碱转溶(acid-base fractionation)实验得知,此抗氧化物质属於中低极性的强酸性物质,对温度(37℃-100℃)及酸碱度(pH3.0-13.0)均表现出高稳定性;(5)在抗氧化机制探讨方面,我们针对数种不同的抗氧化机制进行探讨,即: 1。

The study is possible for experimenters to offer theoretic direction while developing new type quercetin metal complex with higher activity antioxidants. At the same time, the study offer theoretical foundation that quercetin can be used as a kind of antidote for superfluous meatal ion in body.

本文通过对槲皮素金属配合物的合成、生物活性及其量子化学的较深入地研究,为进一步寻找高效、低毒的抗氧化性槲皮素配合物提供了一定的参考价值,同时为槲皮素可作为体内过多金属离子的解毒剂提供了依据。

Including high temperature for the pyrolysis of natural gas to produce carbon black and acetylene; steam reforming of natural gas or partial oxidation of natural gas, synthetic gas can be obtained; natural gas through chlorination, sulfide, nitrification, ammoniated oxide, oxidation can be obtained A N all kinds of derivatives; in the wet gas ethane, propane, butane and natural gas liquid condensate, and so on, the steam cracker or pyrolysis to produce ethylene, propylene and butadiene; dehydrogenation of butane oxidation or produce small Diene or acetic acid, methyl ethyl ketone, and maleic anhydride, and so on.

包括在高温下进行的天然气热裂解,主要生产乙炔和炭黑;天然气蒸汽转化或天然气的部分氧化,可制得合成气;天然气经过氯化、硫化、硝化、氨化氧化、氧化可制得甲烷的各种衍生物;湿性天然气中的乙烷、丙烷、丁烷和天然气凝析液等,经蒸汽裂解或热裂解可生产乙烯、丙烯和丁二烯;丁烷脱氢或氧化可生产丁二烯或醋酸、甲基乙基酮、顺丁烯二酸酐等。

This product is for non-oxidative bactericidal Algicide generally adding a dose of 50-100mg / L; for slime stripping agent, the use of 200-300mg / L, adding necessary amount of silicone-type defoamer.

本品作非氧化性杀菌灭藻剂,一般投加剂量为 50-100mg/L ;作粘泥剥离剂,使用量为 200-300mg/L ,需要时可投加适量有机硅类消泡剂。

Interlayer oxidized zone can be divided accurately by Fe_2O_3, Fe_2O_3/FeO and U parameters. We can correct the field macroscopic color zoning by combining the macroscopic zoning and microscopic zoning. Univalent major elements components(Al_2O_3, SiO_2, K_2O, Na_2O) show remarkable activity at the process of interlayer oxidizing, their contents are variable and mingled in different zones and it can't be used in zoning. But we can speculate the developmental degree of interlayer oxidized zone and uranium mineralization according to the concentration trends and variation characteristics of sensitivity group, activity group and their ratios .(3)The comparatively steady elements such as lithiphile elements, sulfophile elements and high field strength elements change regularly at the process of interlayer oxidation except some radioactive elements. Trace elements and rare earth elements commonly enrich in thin rock clast such as mudstone, in which the enriched elements species are more than those in the whole rock, which indicate that the regeneration action in caulking matter are more deep than that in whole rock at the process of interlayer oxidation, and the reallocate intention of trace elements in main minerlized rock in Tuha basin are more intensive than that in Yili basin at the process of deposition ,diagenesis and later changes .

根据化学蚀变参数PC值和分离迁移位等将常量元素组分分为敏感组分组、活动组分组、次活动组分组和惰性组分组,不同组分可分别用于讨论层间氧化带低温地球化学中不同问题;敏感组分(变价元素组分Fe_2O_3、FeO)和U在层间氧化带中迁移富集规律明显,Fe_2O_3/FeOFe~(3+/Fe~(2+)比值具分带判别能力,配合U含量对层间氧化带进行较准确的分带,可克服野外宏观颜色分带偏差:提出Fe~(3+)/Fe~(2+)分带判别值在不同盆地、不同地段不同,除受氧化作用控制外,流体酸碱度不同也是重要因素的观点,对找矿实践有实际指导意义;活动组分(Al_2O_3、SiO_2、K_2O、Na_2O)在层间氧化作用过程中具有较明显的活动性,其含量值变化跳跃,在不同分带相互交织,不具分带指示意义;但利用敏感组分、活动组分及其比值在层间氧化带中的变化特征可推测层间氧化带发育的完善程度及其含矿性;次活动组分组(CaO、MgO、MnO_2)含量低,变化规律性差;惰性组分组(TiO_2、P_2O_5)含量低,活动稳定,可用来反映沉积物源特征。

This research also indicated that (1) amount of total phenolic compounds, total flavones and percent of DPPH scavenging activity can be used as discriminate index for different kinds of vinegars,(2) new antioxidant may be formed during acetic acid fermentation period and decoction period, and be worth further researching.

本论文实验还表明:(1)总酚含量、总黄酮含量、DPPH自由基清除活性可作为不同种食醋的鉴别指标之一;(2)食醋酿造醋酸发酵阶段和煎煮过程中可能会生成一些新的具有抗氧化性的成分,可能值得进一步研究。

The treatment results of oil-containing wastewater, printing and dying wastewater and landfill leachate with microwave irradiation enhanced Fenton oxidation coupling coagulation process show that not only all pollution items are improved, but also the biodegradability of all are increased greatly.

含油废水、染料废水和垃圾渗滤液经微波强化Fenton氧化耦合混凝法处理后,不仅各项污染指标较低,而且其可生化性大大提高。

Nested PCR analysis and southern hybridization analysis showed that no polymorphism between H.villosa, Pm97034 and susceptible parent Wan7 107 was detected with the clones from 6VS arm, whereas three clones from H.villosa genome DNA: RH42, RH55, and RH66 showed polymorphism. RGA6 cloned from H.villosa genome DNA was characterized identity to NBS, and show high homology to resistance genes as RPM1 and RPP13 in Arabiadopsis, LRR19 in wheat, and I2C-1 in tomato.cDNA library constructed from T.aestivum-H.villosa translocation line Pm97034 was screened by hybridization with RGA6. Four positive cDNA clones were obtained. R3-2-2 showing 60-90% identity with eukaryotic sulfite oxidases contained an open reading frame of 647bp encoding 140 amino acid, and contained a conserved Moco-dimer domain in the ORF. R6-2-2 showed an ORF containing an Euk-porin domain of 279aa with 20-40% identity to the eukaryotic voltage-dependent anion channel proteins. R8-1-1 showed a complete ORF of 1810bp encoding 493aa with 80-90% identity to plant catalases. R9-1-1 showed an ORF containing a BTB/POZ conserved domain of 204aa with 30-70% identity to pox virus and zinc finger proteins. R3-2-2 and R9-1-1 were the first cDNA clones containingconserved domain of SO and POZ respectively isolated from wheat. R8-1-1 contained a complete ORF with 81% identity to Cat-3. Aspects of the role of R8-1-1 may be same with Cat-3, and it would offer the opportunity for improvement of stress tolerance of wheat.

以RGA6为探针,筛选用抗白粉病小麦—簇毛麦易位系Pm97034构建的cDNA文库,得到了4个阳性克隆。R3-2-2与动植物的亚硫酸氧化酶(sulfite oxidase,SO)有60~90%的同源性,长度为647bp,编码140个氨基酸,具有开放阅读框并含有保守域Moco-dimer.R6-2-2与真核生物的VDAC(voltage-dependent anion chennel)蛋白有20~40%的同源性,长度为1047bp,编码279aa,是一个不完整的开放阅读框,预测结构具有Euk-porin结构域。R8-1-1与植物中已经克隆的过氧化氢酶有80~90%的同源性,长度为1810bp,编码493aa,具有完整的开放阅读框和过氧化氢氧化酶保守域。R9-1-1与动植物的POZ(pox virus and zinc finger protein)蛋白有30~70%的同源性,长度为1446bp,具有开放阅读框和BTB/POZ保守域。R3-2-2与R9-1-1是首次从小麦中克隆到的具有SO和POZ保守域的cDNA序列。R8-1-1具有完整的开放阅读框,与玉米Cat-3基因具有81%同源性,预测R8-1-1可能具有与Cat-3类似的功能,可为转基因小麦抗逆育种提供新的基因。

We using the Si substrate has 200μm thickness SiO because of its low absorbing and scattering, so it could be the anti-reflection layer;it also has well-variable refractive index、well-transmittal and well-heated stability of JSR THB-120N negative photoresist which we choice to be materials to develop the polymer waveguides.

选择具有成长200μm厚度的二氧化矽之矽晶片作为实验所需之基板,因为二氧化矽对光具有低本质吸收及低散射性等特质,故可作为所设计之抗反射层;所使用的光阻为JSR THB-120N来作为制作高分子波导的材料,它具有可调折射率、良好的导光性以及良好的热稳定性等。

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