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It is found that the reaction of cadmium nitrate and thiourea in ethylenediamine initially produce lamellar CdS.

硝酸镉和硫脲在乙二胺中反应最初生成薄片状的CdS。

The reactions of ethylenedinitrourea with ethylenediamine or with polyether were studied.

根据乙撑二硝基脲降解生成乙撑二异氰酸酯中间体的性质，研究了它与乙二胺的反应，并进行了硝化反应研究。

The results from analysis showed that the structure of urea formaldehyde resins was affected by F/U mole ratio,pH value ,reaction time and temperature.

研究结果表明脲醛树脂的化学结构主要受甲醛/尿素的摩尔比，pH值、反应温度和反应时间的影响。

Company's main business areas are: chemical raw materials, epoxy resin, polyurethane, PVC, rubber flooring, waterproofing membranes, roofing steel coatings, cool type of roofing coatings, interior and exterior wall latex paint, interior wall anti-condensate fog coatings, external wall elastic coating, the external walls of soft texture coatings, building harsh environment coating systems, concrete repair and protection materials, fair-faced concrete protection system, concrete masonry coloring agents, industrial anti-corrosion coatings, polyurea, 100% solids polyurethane coatings, polyurethane foam protective paint.

公司主营业务有：化工原料、环氧树脂、聚氨酯、PVC、橡胶地板，防水卷材、钢结构屋面防水涂料，凉爽型屋面防水涂料，内外墙乳胶漆，内墙防凝雾涂料，外墙弹性涂料，外墙柔性质感涂料，恶劣环境建筑涂料系统，混凝土修补与保护材料，清水混凝土保护体系，混凝土砖石着色剂，工业防腐涂料，聚脲，100%固含量聚氨酯涂料，聚氨酯泡沫保护性涂料等。

TU delayed not only the release fastigium of NH4+-N for about a week, but also decreased the enrichment of NO3--N and postponed the transformation time of NO3--N for about 10 days.

硫脲不仅延缓了土壤NH4+-N的释放高峰期一周，而且降低了土壤中NO3-N的富集，使NO3--N的释放高峰期向后推迟了10天。

The results indicated that urea and hydroquinone exhibited synchronous release fastigium and compared to urea, hydroquinone showed higher release rate.

采用室内摸拟培养的方法开展：(1)尿素和脲酶抑制剂氢醌被共同包被后二者在土壤中的溶出行为。

The effect of maleic acid, potassium ferrocyanide and thiourea on electroless copper plating was investigated.

研究了马来酸、亚铁氰化钾和硫脲对化学镀铜的影响。

The catalytic action of mercury on the colour reaction between potassium ferrocyanide and 4, 7-diphenyl-1, 10-phenanthrolihe has been studied, The addition of thiourea will further increase the sensitivity of the reaction.

本文研究了汞催化亚铁氰化钾与4，7-二苯基-1，10-菲啰啉显色反应体系，硫脲的加入显著提高了体系的灵敏度，摩尔吸光系数ε＝4。

According to the problem of the long processing time and testing cycle for food measurement, the feasibility of using one microwave digestion solution to investigate seven elements in food was discussed.

摘 要：针对食品检测前处理时间和检测周期过长的难题，用硝酸及双氧水作为消解溶剂，在设定的微波消解条件下，可以将样品消解完全，消解液中加入硫脲和L盐酸，不需任何处理可直接进行砷等7种元素的测定。

P28 紫色 Formation of a peptide bond 肽键形成–4侧链具有的反应–形成二硫键-其它反应 Tyr,His,Arg Review Isoelectric Point Titration滴定 of an amino acid 滴定 Gly幻灯片 18 His Lys Glu Reaction of amino acids Section 4 Protein isolation and purification 蛋白质分离及提纯 Working With Proteins Experimental techniques for protein analysis and characterization Purification steps A cell contains many types of proteins In the lab we want to isolate a single protein for experiments Purification steps We first grow cells or isolate tissues that contain the protein of interest We break open the cells to produce a crude extract Use centrifugation离心 to separate soluble from insoluble material We fractionate 分离 the protein mixture based on properties of such as size, charge affinity or solubility.

丹磺酰氯与氨基酸反应生成荧光性质强和稳定的磺胺衍生物，用于多肽链NH 用于多肽链 3末端氨基酸的标记烃基化反应(1) 2，4-二硝基氟苯2，4-dinitrofluorobenzene，二硝基氟苯(二硝基氟苯 DNFB也叫做试剂。DNFB在弱碱性溶液也叫做Sanger试剂试剂中与氨基酸发生取代反应，生成黄色化合物二硝基二硝基苯基氨基酸(dinitro phenyl amino acid， DNP氨基酸氨基酸)苯基氨基酸氨基酸(2)苯异硫氰酸酯(phenylisothiocyanate， PITC)在弱碱性条件下，与氨基酸反应在弱碱性条件下，生成苯乙内酰硫脲 PTH衍生物，(phenylthiohydantoin， PTH)衍生物，即PTH-氨基酸，此反应又称之Edman反应，该反应是蛋白质或多肽氨基酸序列测定常用的反应。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。