查询词典 anion

L acted as tridentate ligand to chelate with metal atom in enol and ketone form respectively; In complex anion Co atom reside in tetrahedral coordination environment.

钴原子位于八面体配位环境中，配体L分别以烯醇式和酮式充当三齿配体与金属原子配位，配阴离子中Co原子位于四面体配位环境中。

Bis-(2-oxo-2-phenyl-ethyl) trithiocarbonate(TTC2) were synthesized with anion-exchange resin for the first time.

首次用阴离子交换树脂法合成了S，S′-二三硫代碳酸酯(TTC2)。

Keywords tungstenic anion-pillared;LDHs;in-situ synthesis;ion-exchanging

同多钨酸根阴离子；水滑石；原位合成；离子交换

The results show that the surfactant species impact apparently on the purity, dispersion degree and particle size of the reducing sample. The non-ion surfactants can improve the dissemination of ultrafine silver particles, but both the dispersive effects of cation and anion surfactants are unapparent.

结果表明：表面活性剂的种类对制备样品的纯度、分散性和颗粒大小有着重要的影响，其中阳离子表面活性剂和阴离子表面活性剂的分散效果不明显，非离子表面活性剂的分散效果最好。

A method for determination of eight monosaccharides and two uronic acids in polysaccharide and wood hemicellulose hydrolysate by high performance anion exchange chromatography with pulsed amperometric detection was established.

建立了高效阴离子交换－脉冲安培检测同时分离测定8种单糖和2种糖醛酸的分析方法。

In this experiment, we use different kind of solvent to extract Vitaceae plants to test of antioxidae, includes clean DPPH free radical, ferrous ions chelating effects, restrain producing superoxide anion, ferric reducing ability of plasma and anti-liver lipid peroxidation assay.

在利用不同溶媒萃取葡萄科植物评估抗乳癌细胞株MCF-7毒杀试验和抗氧化试验中，其包含清除DPPH自由基、螯合亚铁离子、抑制超氧阴离子之生成、还原三价铁离子能力测定及抗肝脂质过氧化等几项。

The intensity ratio of TO and LO inMCT was observed to be different. Such difference was explained in terms of the different Ramangeometry arrangement.〓. The laser-induced micro-photoluminescence in the range of 1000～5000〓(1.34eV～1.83eV) was found for the first time in LPE MCT epilayer. The center of photoluminescence wasat 2750〓 or 1.62eV and the FWHM of luminescence was 2000〓 or 0.25eV. We assume thatthe photoluminescence is due to recombination of electron from an anion vacancy resonance levelto the top of valance. In addition, new Raman shift was observed at 750〓 in LPE MCTepitaxial film.〓. The laser-induced micro-photoluminescence with quasi-periodic structure was observed forthe first time at room temperature in one of MOVPE MCT epitaxial film samples. The range offluorescence was from 1.46eV to 2.21eV, i.e., 1.73eV above the conduction band edge.

2首次在LPE生长的碲镉汞外延薄膜的显微Raman谱中，在1000～5000〓范围发现了激光激发显微荧光，该荧光的发光范围换算为电子伏特标度为1.34eV～1.83eV，荧光的发光中心大约位于2750〓，即1.62eV，发光的半峰高宽约为2000〓或0.25eV；指出该显微荧光来源于碲镉汞薄膜中的阴性离子空位共振能级的激光激发发光；观察到了碲镉汞外延薄膜中一个新的Raman散射峰，位于750〓位置； 3首次在一块用MOVPE方法生长的〓Te外延薄膜的显微Raman谱中，发现了1.46eV至2.21eV范围并伴随有周期结构的显微荧光峰，该发光峰对应的能带中心位于〓Te材料导带底上方1.73eV，通过研究得出样品在1.46eV至2.21eV范围的显微荧光峰是由于改进 MOCVD 生长工艺，提高了碲镉汞外延薄膜的结构质量所致；通过分析指出该显微荧光来源于外延层中的阴性离子空位的共振能级发光。

Sodium oleate, as a kind of anion surface active reagent, its modification condition was: pH value was 5, the quantity accounted for 20% of total waterish nanoparticle powder, the temperature was 80 centigrade.

纳米颗粒的改性条件为：pH=5 时，油酸钠的添加量为湿粉质量的20%，添加温度为80℃，得到粒径为15nm 的颗粒。

Weaky basic anion-exchange resin was used to isolate and purify fucoidan from kelp Laminaria japonica, and phenol-H2SO4 method was applied to determine total carbohydrates and the optimal processing condition.

对弱碱性阴离子交换树脂分离纯化海带岩藻聚糖硫酸酯的工艺条件进行了研究，并采用苯酚－硫酸法测定总糖浓度绘制解吸曲线，确定最佳样液的pH值和洗脱流速。

The main results are as follows:(1)In order to find out the catalysis character of pectinase and xylanse in bacillus circularise A_6 and exhibit their maxium catalysis rate,the optimum condition for determination of pectinase and xylanase activity in bacillus circularise A_6 was studied in aspect of pH,temperature,substance concentration,reaction time,anion concentration.

试验结果如下：(1)为探明环状芽孢杆菌果胶酶及木聚糖酶的催化特性，更好发挥它们的催化性能，本文从pH值、温度、底物浓度、反应时间、离子强度几个方面研究了环状芽孢杆菌A_6产生的果胶酶与小聚糖酶活性测定的最适方法。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷