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Phytates,the salt form of PA chelating with cations such as K~+, Ca~(2+),Mg~(2+),Zn~(2+) and so on,are mostly accumulated in the aleurone and embryo part of cereal seeds.

植酸是作物种子中含磷最丰富的化合物,占种子干重的1%以上,种子全磷含量的65%-85%和酸溶性肌醇磷酸盐的90%以上,易与K~+、Ca~(2+)、Mg~(2+)和Zn~(2+)等金属离子螯合形成植酸盐,主要沉积在作物的糊粉层和胚中。

Using mordern physical chemistry techniques (such as XRD、 TG-DTA、 IR、 XPS and 〓Xe-NMR)、 chemical adsorption techniques (NH〓-TPD、 H〓-TPD、 TPO、 TPR etc.) and pulse flow microreaction of n-hexane、 methylcyclopentene and n-hexane containing 0.2ppm thiophene, we studied mainly the following three points:(1). the changes occured during the calcination pretreatment of Pt ammine complex supported on β and L zeolites;(2). the effect of structure and acidity-basicity of zeolite on the dispersion and electron state of Pt particles; and (3). the influence of second metal component on the reactivity of nhexane aromatization and sulphur-resistance of Pt/L zeolite catalyst. Several interesting and valuable results are obtained and summerized as follows

本论文运用各种近代物理表征方法(XRD、BET、TG-DTA、IR、XPS和〓Xe-NMR)、化学吸附技术(NH〓-TPD、H〓-TPD、TPO、TPR等)和正己烷、甲基环戊烷及含噻吩正己烷的脉冲微反等方法,着重研究了(1)载Pt的β和L沸石在分解预处理过程中发生的变化;(2)沸石载体结构及酸碱性对Pt粒子分散及电子状态的影响;(3)第二金属组份对载Pt沸石催化剂上正己烷芳构化及抗硫性能的影响等,得到了某些有意义的结果。

It is well known that metal ions play important roles in the catalysis of a large number of different enzymes.

金属离子是许多不同酶分子中不可缺少的重要组成部分,并在酶的结构和功能中发挥着重要的作用,特别是含锌离子的酶,由于遍布于六大类酶中的每一类而更加引人注目。

The industry magnesia mainly uses in making the ceramics, the enamel, the fire-proof material and so on; In the polishing compound, the adhesive, in the paint manufacture takes the stopping; In the artificial fiber, the rubber (chloroprene rubber, fluorine rubber) make the promoter and the catalyst; Makes the antacid on the medicine in the laxative, uses in treating the hyperacidity, the stomach and duodenum ulcer; May take the hard sugar purification is the decolorant in the food processing, the ice cream pH value conditioner and so on; In the construction profession, the magnesia may the manufacturing contain the magnesium special cement and the heat preservation board and so on; The biggest use is serves as the fertilizer and domestic animal's feed in the agriculture, causes the plant and in the animal metabolism process principal element, when serves as cow's feed, may prevent because to lack nervous system function being out of balance which the magnesium causes, namely the so-called forage grass convulsion gets sick; Uses in the chemical industry making the metal magnesium and the magnesium chemical, like magnesium sulfate, magnesium chloride as well as other chemicals; Moreover also uses in the water treatment, the detergent which the flue was mad uses in the glass, the dye, the electric cable, the silcon steel industry, the uranium processing, the electronics industry, the insulation material industry, as well as uses in professions and so on petroleum chemical additive, casting, phenolic plastic.

工业氧化镁主要用于制造陶瓷、搪瓷、耐火材料等;在抛光剂、黏合剂、油漆的制造中作为填充料;在人造纤维、橡胶中作促进剂和催化剂;在医药上作抗酸剂于轻泻剂,用于治疗胃酸过多、胃和十二指肠溃疡病;在食品加工上可作为砂糖精制是的脱色剂,冰淇淋的pH值调节剂等;在建筑行业中,氧化镁可生产制造含镁特种水泥和保温板等;在农业上最大用途是用作肥料和牲畜的饲料,使植物和动物代谢过程中的主要元素,用作奶牛的饲料时,可防止因缺镁而引起的神经系统机能失调,即所谓牧草性痉挛病;在化学工业中用于制造金属镁和镁化学品,如硫酸镁、氯化镁以及其他化学品;另外也用于水处理,烟道气的洗涤剂用于玻璃、染料、电缆、硅钢工业、铀加工、电子工业、绝缘材料工业,以及用于石油添加剂、铸造、酚醛塑料等行业。

In this thesis, some novel fluoro-containing alkoxyl metallophthalocyanines asphotosensitizers for the treatment of cancer were designed and synthesized; some of theirproperties related to photosensitizer such as spectra properties, photooxidation ability, DNAphotocleaving ability, and photodamage on tumor cells in vitro were studied.

论文在比较了目前用于光动力作用光敏剂的优缺点的基础上,设计、合成了含氟烷氧基取代的金属酞菁衍生物,并对它们的光谱性能、光氧化性能、对DNA的光敏切断性能及对离体细胞的光动力损伤作用进行了研究。

Stone is from rock, and rock is consist of the mineral, the mineral contain iron is the source of the iron in stone products , iron element spread widely in natural world, but most of them appear to be compound, iron element is belong to medium activity metal, under high temperature is easily to be strongly acted with oxygen, sulfur, chlorine, and easily dissolve in abio-weak acid solution and strong hydrochloric acid solution, at the same time, the strong alkali solution also corrade the iron.

石材是岩石经加工后所产生的制品,岩石是由矿物组成的,其中含铁矿物是石材中铁质的来源。铁元素在自然界中分布甚广,但大多以化合物的方式出现,由于铁元素属中等活泼性的金属,在高温下易和氧、硫、氯等元素发生强烈反应,并易溶于无机稀酸和浓盐酸的溶液中,同时浓碱溶液也易侵蚀铁。

Firstly,two novel rare earth complexes(CH_2=CHO)Ln~Ⅲ[2,6-_2PhNSiMe _3]_2Li_3Ln=Y(2,Yb(3)containing arylamido and enolate mixed ligands have been synthesized by treatment of 2 equiv of of 2,6-~iPr_2PhNHSiMe_3 with exces n-BuLi at -78℃in THF for 12h,followed by reaction with 1 equiv of LnCl_3at 80℃for 24h in one-pot.All the two compounds were characterized by spectroscopic methods,elemental analyses,and a single-crystal X-ray diffraction study.

首先,-78℃下,在两当量的2,6-~iPr_2PhNHSiMe_3(1)THF溶液中加入过量的n-BuLi,反应12小时,再加入一当量的LnCl_380℃下,反应24小时,一锅法合成了含胺基、乙烯醇基混合配体的新型稀土金属配合物(CH_2=CHO)Ln~Ⅲ[2,6-_2PhNSiMe_3]_2Li_3Ln=Y(2、Yb(3),上述化合物结构经单晶X-ray衍射、光谱和元素分析表征,表明我们得到的是一类新型的三价稀土配合物。

In recent years, manganites have attracted much attention,because of their abundant physics and potential applications.

中文摘要:含Mn氧化物作为过渡族金属化合物,是一种有着特殊的物理性质和很大潜在应用价值的新材料,近年来引起人们的广泛注意。

A novel ligand, N, N'-bis (2-hydroxy-1-naphthylidene)-3-oxa-1, 5-diaminopentane , and its Zn , Ni , Co , Cu complex were synthesized. The compositions and structures of the ligand and its complexes were characterized by elemental analyses, MS , IR spectra, DTA-TG and molar conductivity.

合成了含萘酚环Schiff碱开链冠醚配体H〓L〓(N,N'-双-二甘醇二胺)及其过渡金属(Zn、Ni、Co、Cu)配合物,通过元素分析、质谱、红外光谱、摩尔电导对配体及配合物的组成、结构进行了详细的表征,对配体和配合物的溶液和固体荧光性质进行了研究。

The δ〓O for both of them are changed due to water/rock interaction at water/rock weight ratios of larger than 0.1, and the calculation indicates that, in this case, the influence of water/rock interaction on the δD value of the fluid is minor. In the upper part of the geothermal system, the upward ore forming fluid mixes with low temperature groundwater with very low salinity and δ〓O, which may cause the precipitation of metals.

根据氢、氧同位素研究结果,嵩溪银锑矿床的上升成矿流体是由岩浆热液与循环地下水热液混合而成,这种混合成因含矿热液上升到地热系统上部与低矿化度、低δ〓O的低温地下水发生了不均匀混合,这种混合作用导致金属矿物沉淀,但成矿物质是由上升成矿流体带来的。

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According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm~150rpm时取得最大值,此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世,形体几无变化。

When I was in school, the rabbi explained everythingin the Bible two different ways.

当我上学的时候,老师解释《圣经》用两种不同的方法。