查询词典 chelator

Of all chemicals, surfactant and chelator are well received for their properties of solubilization, mobilization and chelation, and so on.

当前对表面活性剂去除土壤中重金属污染的研究多处在实验室阶段，且主要是用在实验室柱淋洗和批试验中，不能有效地应用于实际。

Methods: TOCA was labeled with (superscript 99m)Tc using HYNIC as bifunctional chelator, EDDA and trieine as coligand. The nude mice bearing human small cell lung cancer underwent static whole body planar imaging after the injection of (superscript 99m)Tc-HYNIC-TOCA or (superscript 99m)Tc-P829. ROIs were drawn and the radioactivity ratios of target to non-target were calculated in every planar imaging. The dynamic biodistribution study was operated in Kunming mice and the percent uptake ratios of two imaging agents in different tissue at different time were measured.

以HYNIC为双功能螯合剂(bifunctional chelator， BFC)，乙二胺－N，N'-二乙酸和三甲基甘氨酸为协同配体进行TO-CA的(上标 99m)Tc标记；以(上标 99m)Tc-HYNIC-TOCA和(上标 99m)Tc-P829为显像剂，对荷人类小细胞肺癌裸鼠进行显像，通过感兴趣区技术进行半定量分析，计算并比较两种显像剂的靶/非靶比值；在昆明鼠体内进行动态生物学分布实验，测定并比较不同时点两种显像剂在各脏器的克组织百分摄取率。

We have found that ESA can be used as chelator under high temperatures.

试验结果表明，三种方法都具有标准偏差小、准确度高和简便易行等特点。

In iron-deficient cells, photosynthetic pigments content decreased, efficiency of photosynthesis was low, With the increase of the concentration of the iron-chelator 2, 2'-Dipyridyl in media, Fv/Fm decreased, indicating photoinhibition increased, the results were consistent with previous research; Heterocyst induction had one delayed time dependent on the status of iron-deficiency, More severe of the iron-deficiency condition, more late of the heterocyst induction, It is possible that certain iron-related genes may directly regulate heterocyst development; under different iron limitation conditions, Protein pattern were different, more serious of the iron-deficiency conditions, less bands of the protein pattern, We could not find the iron-deficiency induced protein; In general the toxic effects of ROS were potentiated by excess iron, But our results revealed that even under iron-deficiency conditions, Oxidative damage existed.

铁限制的细胞光合色素含量下降，光合作用能力下降，随着铁螯合剂2，2'-dipyridyl浓度的增加，叶绿素荧光F〓／F〓逐渐降低，显示光抑制变强。与前人的研究结果相似；依赖铁缺失状态，异形胞诱导有一段推迟的时间，铁缺失越严重，诱导越迟，推断某些铁相关的基因会直接调节异形胞发育；在不同铁营养条件下，蛋白质图谱的变化趋势很明显，缺铁越严重，则蛋白质谱带数愈少，但本文未能找到特异诱导蛋白；一般认为铁过量情况下ROS产生加强，本文结果显示即便在铁缺失条件下，也有氧化胁迫伤害，而且缺铁越严重，活性氧伤害越大。

Clinically we can use phlebotomy or iron chelators to treat iron overload. In the past 3 or 4 decades, only one available iron chelator "deferoxamine" can be used. However, poor compliances and inconvenience are major problems.

对於铁质过度负担（即过多的铁堆积，iron overload）的病患其治疗主要有放血与排铁剂，以达到铁之排出量大於来自输血及肠道吸收的量。

When EGTA (Ca〓 chelator), Verapmil and LaCl〓(Ca〓 channel blockers) were used to treat tomato fruit at green mature and strawberry fruit at white stage with ethylene, they could reverse ethylene-induced increase in ethylene production in tomato and strawberry, PG activity, lycopene content, soluble protein content in cell wall in tomato and degradation in soluble protein in strawberry, which indicated blocking Ca〓 channel in plasma membrane or chelating Ca〓 can decrease intracellular Ca〓, further inhibite ethylene-induced maturation, ripening and senescence of fruit.

用质膜钙通道阻断剂异博定、钙通道Ca〓竞争性抑制剂以及Ca〓专一性螯合剂与乙烯一起处理绿熟期番茄果实和乳白期草莓果实，均可抑制乙烯诱导番茄和草莓的乙烯生成、番茄PG活性的提高、番茄红素含量的增加和细胞壁可溶性蛋白含量的增加以及草莓可溶性蛋白的分解，表明阻断质膜Ca〓通道或螯合胞外Ca〓以减少胞内Ca〓能抑制乙烯对果实的催熟作用，间接证明乙烯对果实成熟衰老的诱导与胞外Ca〓内流引起的胞质Ca〓浓度的增加密切相关，表明乙烯信号转导可能与钙信使有关，调节胞质Ca〓浓度可调节乙烯对果实的催熟作用。

The pharmacokinetics could be predicted irrespective of the MAb chosen prior to ECAT when labeled with the same tri-functional chelator "1033" and ~111In. A small tumor burden didnot change the biokinetics.

这表明可用一种单抗的血药代来代替其它单抗的血药代来决定体外免疫吸附柱的最佳实施时间只要结合相同的螯合剂&1033&以及相同的核

Chelator-assisted hydrothermal method for growing ZnO nanopricks ZnO nanopricks were formed while 0.3 mol/L diaminoethane, 3 mol/L butylamine and 0.25 mol/L EDTA were used as chalators to react with zinc foil at 100℃ for 12 h.

络合物水解法制备ZnO球形颗粒利用酒石酸锌的水解反应，在水溶液中制备了由超细颗粒组装的ZnO球形颗粒，XRD、HRTEM检测结果表明颗粒为纤锌矿ZnO多晶结构，在溶液中添加乙二醇，产物的尺寸和分散性得到了改善。

Under the instruction of above-mentioned theoretical results, in the thesis chapter 10, the strongly electron-withdrawing anion, C_5O_5~(2-)[dianion of croconic acid (4,5-dihydroxycyclopent-4- ene-1,2,3-trione)], was chosen as the chelator to coordinate with boron to form lithium salt, which will yield high ionic conductivity solutions, and exhibit wide electrochemical stability windows and high thermal stability. As described in the chapter, two new lithium salts containing C_5O_5~(2-), lithium bisborate and its novel derivative, lithium borate for Li-ion battery electrolytes were synthesized.

在上述理论结果的指导下，论文第十章选择了克酮酸二价阴离子——具有很强的酸性、较好的芳香性、较大的电荷分散性、形成的配合阴离子具有较显著的共轭性——作为配体与B配位，合成了二种新的锂盐，通过实验测定了它们的结构和在有机溶剂中的溶解性。

Results Daphnetin exhibited a modest iron-chelating ability compared with the powerful iron-chelator desferrioxamine B.

结果 与强铁螯合剂去铁胺相比，瑞香素具有中度的铁螯合能力。

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。