螯合剂

The dopamine release in vivo was monitored by fast cyclic voltammetry and the concentrations of DA and its metabolites dihydroxy-phenylacetic acid and homovanillic acid were determined by high performance liquid chromatography electrochemical detection in the process study. In addition, the effects of some traditional Chinese herbs and related marine drug on behavioral changes were also evaluated in order to provide some suggestive clue for rational drug design of anti-Parkinon's disease .

许多因素都参与PD的DA能神经元的死亡，所以，本研究在制备PD动物模型的基础上，应用国内率先引进的快速周期伏安法检测设备在体动态监测DA的释放，同时应用另一种电化学检测技术—高效液相色谱电化学检测法离体检测DA及其代谢产物二羟苯乙酸和高香草酸的含量，结合行为学测定及其它方法，研究了雌激素和铁在PD发病中的作用，以及一些药物，如吲哚醌、牛磺酸、铁离子螯合剂、胆囊收缩素（CCK-8）、乌鸡白凤丸有效成份、大豆异黄酮及海洋酸性寡糖HSH971，对DA能神经元的影响，从DA能神经递质角度对PD的发病机理提供进一步的实验依据，并为PD的预防和治疗提供新的干预措施。

Objective To construct the expression plasmid of human Annexin V. express it in E. coli and label Annexin V with (superscript 99m)Tc using hydrazino nicotinamido.

目的 构建人膜联蛋白V表达载体并诱导其表达，应用双功能螯合剂联肼尼克酰胺偶联后应用核素(上标 99m)Tc标记。

Firstly, polyacrylamide with 26 million molecular weight was compounded in lab through establishing optimum compounding initiator proportionality of 1:1. 3 and mass concentration of 170 mgL^(-1), temperature of 10 ℃, acrylamide mass percentage of 25%, electrical conductivity of 3.6 μSm^(-1) and pH value of 6.57. The salt-resistance, thermal endurance and shear-resistance of polyacrylamide could be enhanced b introducing sulfonic acid group or styrene sulfonate group or drawing the two groups above at the same time. Secondly, chelator HEDP, bactericide isoquinoline ketone and oxygen scavenger thiourea were optimized to improve the compatibility of polyacrylamide and formation water.

在由室内试验确定了复合引发剂最佳比值1：1.3和质量浓度170 mgL^(-1)、合成最佳温度10℃、丙烯酰胺单体质量分数25%、电导率3.6μSm^(-1)和pH值6.57后，合成出相对分子质量高于2.6×10^7的聚丙烯酰胺，同时通过丙烯酰胺单体复配引入磺酸基团、苯乙烯磺酸基团或同时引入此两种基团，提高了聚合物的抗盐、抗温、抗剪切性能；后针对聚丙烯酰胺与地层水配伍性差的问题，优选出HEDP螯合剂、异噻唑烷酮杀菌剂和除氧剂硫脲，对聚合物稳定效果明显。

Soil conditioning agent; utilization of black liquor; modified lignin; aluminum toxicity; ligand; sulfonated lignin; alkaline -oxygen treated lignin; gel filtration chromatography; muconic structure.

农业科技，农业基础科学，土壤学土壤改良剂；黑液利用；改性木素；磺化木素；氧碱处理木素；铝毒；螯合剂；凝胶过滤色谱；己二烯二酸结构

The influences of some metal ions in seawater treated by Cephlex 100 on metamorphosis, growth and activities of alkaline phosphatase and ATPase in mysis and postlarvae of Chinese prawn Penaeus chinensis were studied.

向经过螯合剂Cephlex 10 0处理的海水中添加金属离子，进行培养中国对虾糠虾幼体和仔虾幼体，观察金属离子对变态发育及其体内碱性磷酸酶和ATPase活性的影响。

In general, sunflower was suited to phytoremediation of moderately Pb-contaminated soil by phytoextraction.The result mentioned above showed that the main reasons that nutrient and EDTA could impact on phytoremediation efficiency was these as below: firstly, the addition of soil amendments transform soil Pb from nonresidual fractions to residual fraction substantially. Secondly, the grown period of tissues in C4 plants was short, so the replacement of C4 plants with C3 plants may increase times and efficiency of remediation.

根据上述结果，不同营养水平和EDTA对铅污染土壤植物修复的机理及效率可以归纳为：N、P、K的添加能使土壤中的非残留态Pb向残留态转化，因此N、P、K的添加能够增加菠菜和苣荬菜体内的铅积累；与C3型植物菠菜、苣荬菜相比，C4型的植物马齿苋由于构件成熟期短，较为适合作短期内铅污染土壤修复工程；在植物修复过程中，低浓度EDTA的分次添加能够显著提高修复的效率，并且能够减小螯合剂增加产生的二次污染。

By experiment, we can concluded that stabilizers, chelatingagents, activators are necessary. 2.5%～5% sodium silicate,0.25%～1% magnesium sulfate,1%～2.5% citric acid,1.5%～2% OOBS are appropriate for peroxy bleaching.

通过实验证实，在过氧漂白中，稳定剂、漂白活化剂、螯合剂是必不可少的添加剂。2.5%～5%的硅酸钠、0.25%～1%的硫酸镁、1%～2.5%的柠檬酸、1.5%～2.5%的OOBS对于过氧化氢开释活性氧起到稳定或活化的作用，达到较好的漂白效果。

Optimum conditions for the separation and preconcentration of Au, Pt and Pd are studied.

以亚硝基R盐作为螯合剂制备了负载树脂，研究了用该树脂分离富集 Au、Pt和Pd的最佳条件。

Nucleotide-induced eNOS phosphorylation and activity were inhibited by BAPTA-AM (an intracellular free calcium chelator), rottlerin, and protein kinase C siRNA.

BAPTA-AM（一种细胞内游离钙螯合剂），rottlerin和蛋白激酶C siRNA抑制核苷酸介导的内皮型一氧化氮合酶磷酸化和活化。

Salicylaldehyde is a extensive use chemical products. It is widely made use of pesticide, medicine chelating agent production.

水杨醛是一种用途极广泛的精细化工产品，被广泛应用于农药、医药螯合剂的生产。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。