查询词典 reductant

Gold nanoparticles had been synthesized under the low-acid or the near neutral condition by chemical reductant in the high concentration of chloroauric acid solution.

在弱酸性或近中性条件下，用化学还原剂还原较高浓度的氯金酸溶液，制得纳米金种子溶液，然后用晶种法制备金溶胶。

UV-Vis spectrum showed that some monomer or oligomer were existed in this film. The results demonstrated that the PPy chains were served as both the reductant of chloroauric acid and the ligands to stabilize gold-NPs.

接着利用吡咯单体及寡聚体具有的还原性，将新合成的聚吡咯膜浸泡在氯金酸水溶液中搅拌反应，通过扫描电镜观察发现，在膜中还原生成了大量的金纳米粒子，同时在膜的表面也观察到了金纳米粒子的存在。

The pigment of Berberis heteropoda Schrenk is a type of anchocyanin and it is strong in resistance against light and to some extent, good in enduring heat and low consistence oxide. But it is poor in resistance against reductant and preservative. It can be applied to the condition of PH. It is also found that sucrose and most of metal ions do not exert negative effects on the stability of the pigment, except Fe3+, Fe2+and low consistence Pb2+, which have some extent effects. Adding stability matter can improve its stability. The harm trace elements contains are within requirement of the National Standard on food safety, As the lexicological study indicates that the pigment does not have any toxicity and mutagenesis, it can be used as edible pigment.

结果表明：大孔树脂吸附-解吸附法纯化黑果小檗色素实验室工艺简单易行，色素回收率高；黑果小檗色素属于花色苷类色素；耐光性好；对热有一定耐受性；对低浓度氧化剂有一定耐受性；耐还原性差；对防腐剂耐性差；适用PH＜6条件下使用；蔗糖和大多数金属离子对色素无不良影响，但Fe~(3+)、Fe~(2+)、Sn~(2+)和低浓度pb~(2+)对色素有影响，加入稳定剂后，可提高色素的耐热性、耐氧化性、耐防腐剂能力；经对有害微量元素进行检测和毒理试验表明，该色素安全无毒，可以作为天然食用色素使用。

The thesis studied the total exocellular proteins, reductant sugar and the pectinase enzyme activity of CXJZ95-198 strain in glucose, mannose, xylan, mannosan and pectin culture media.Compared enzyme activity of pectinase, xylanose and β-mannanose. The secreted proteins in ferment fluid from different culture media were analysed by SDS-PAGE electrophoresis.

本论文对CXJZ95-198菌株在葡萄糖、甘露糖、木聚糖、魔芋粉及果胶五种不同碳源培养基中胞外酶蛋白质总量、还原糖及果胶酶活性的影响进行了研究；对果胶酶、木聚糖酶及β-甘露聚糖酶在甘露糖培养基中的酶活进行了比较；对CXJZ95-198菌株在不同碳源培养基中的发酵液在SDS-PAGE电泳中分泌出的蛋白带作了比较；对CXJZ95-198菌株所产生的胞外酶系中果胶酶进行了分离纯化。

Since manganese oxide ore powder has a strong oxidizability in acidic aqueous solution, manganese is difficult to be directly stripped. In order to realize solvent leaching, a reductant with lower electrode potential should be used.

氧化锰矿粉在酸性水溶液中有很强的氧化性，锰难以直接溶出，为达到溶浸目的，应有电极电位较低的还原剂存在。

Using tin bichloride-glycerol mixed solution as reductant,the determination method of phosphorus content for bioceramic base-material-β-calcium phosphate with phosphomolybdate blue spectrophotometry has been established.

以二氯化锡-甘油混合液作还原剂，建立了用磷钼蓝分光光度法测定生物陶瓷基材β-磷酸钙中磷含量的方法，确定了最佳测定条件。

Results The concentration of zwitterionic detergent CHAPS and reductant was decisive for obtaining good resolution of 2-DE pattern. Protein sample should also be processed as quickly as possible under low temperature to prevent proteins from degradation.

结果：两性离子去污剂CHAPS及还原剂的浓度是影响双向电泳图谱分辨力的重要因素；蛋白质组样品的处理必须在低温下快速完成，以避免蛋白降解。

In order to radically improve the present silicothermic reduction process for magnesium smelting, this paper started with the idea of taking liquid calcium as reductant and studied the feasibility of the new magnesium reduction process deoxidizing by liquid calcium .

为了从根本上改进现行的硅热法炼镁工艺，从新的还原剂——液态钙着手，研究了用液态钙为还原剂的金属镁还原新工艺的可行性。

He effects of such factors as alkali agent, reductant, oxidant,temperature and time on the result of real silk fabric dyeing by sulphurs are discussed, with a comparison of sulphurs dyeing results between real silk and cotton fabricly.

探讨了真丝绸硫化染料染色中碱剂、还原剂、氧化剂、温度、时间等因素对染色结果的影响，比较了硫化染料在真丝绸及棉织物上的染色效果。

Three initiators, ammonium persulfate / DMA, ammonium persulfate / urea / ammonia liquor, ammonium persulfate / triethanol amine were applied to the polymerization at 50癈, 55 癈 and 60癈, and the influence of ratio oxidant / reductant on reaction rate and molecular weight of polymer were studied.

本文研究了过硫酸铵／DMA、过硫酸铵／氨水／尿素、过硫酸铵／三乙醇胺三种引发体系在50、55、60℃下，不同氧化剂、还原剂配比条件对反应速率、分子量的影响。

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。