查询词典 Zn

Zn, Ni and Cu can be apart extracted for more than 85 % by aspartic acid at low pH.

结果表明，随着萃取体系pH值的升高，重金属的萃取率逐渐降低。

Isotherms of benzothiophene on the activated carbon were separately measured at different temperature, and then the variation of the adsorption of benzothiophene on the activated carbon was discussed with the help of the hard and soft acid and base principle.

结果表明，活性炭表面负载Ag^＋、Ni^2＋、Cu^2＋或Zn^2＋离子，可提高活性炭吸附苯并噻吩硫化物的能力，而活性炭表面负载Fe^3＋或Co^3＋离子，反而降低了活性炭吸附苯并噻吩硫化物的能力，这主要是活性炭表面的酸碱性质发生变化。

Benzaldehyde and acetone used as materials,the benzylidene acetone is synthesized in the presence of potassium fluoride on alumina.

以苄叉丙酮为主光亮剂、OP-10为载体光亮剂，并加入适量的辅助光亮剂，复配出Zn-Mn合金电镀添加剂ZM。

For Uracil-Zn~(2+) complexes, the bidentate coordination mode is more stable among the possible complexes relative to the monodentate case.

首先，我们对脲嘧啶与锌离子以及水合锌离子的耦合情况进行了讨论。

The adsorption behavior of probing molecule of pyridine and bipyridine at Zn electrode has been studied utilizing the SERS technique.

两种联吡啶分子和锌的作用都比吡啶强，2，2'-联吡啶在锌表面存在由电位变化引起的两种表面吸附物种构型的转换。

In the procedures of syntheses, we chose 2,2"-bipyridine (2,2"-bipy), 4,4"-bipyridine (4,4"-bipy), 1,10-phenanthroline (1,10-phen) and 8—hydroxyquinoline as neutral ligands, and lead, copper, zinc, cadmium and manganese as metal ions in our research.

使用的中性配体为2，2′-联吡啶(2，2′-bipy)、4，4′-联吡啶(4，4′-bipy)、1，10-邻菲罗啉(1，10-phen)和8—羟基喹啉，研究的金属离子为主族金属Pb以及过渡金属Cu、Zn、Cd和Mn。

The selection of Paulownia fortunei, Ulmus Pumila, Broussonetia papyrifera and Cynodon dacytlon in that serious pollution district was the effective restorative method.

因而在Cd、Pb和Zn严重污染的环境中，选择泡桐、白榆、构树和狗牙根的乔木和草本植物组合是该类污染区植物修复的有效途径。

Belonged to the normal contents of the trace elements in plants, but the content of the Cr was far higher than that of the general plants, which suggested that Canarium album Raeusch. be of Cr hypertolerant plant. Because organic Cr in organisms was the effective element with the effects of anti-cancer anticancer and fat reducing, the ultrahigh content of Cr was probably related to the effects of anti-cancer anticancer and fat reducing of Canarium album Raeusch..

所测橄榄品种各器官中的Fe、Mn、Cu、Zn、Ni的含量在一般植物体的正常含量范围之内，但Cr含量远远超出正常含量范围，表明橄榄是一种富集Cr植物；由于生物体的有机铬是有效的抗癌和降脂成分，因此橄榄超高含量的Cr可能与橄榄抗癌和去脂减肥药用作用密切相关。

The results showed that,except for Ni in the seed, six trace elements existed in all the organs, including the young leaf, old leaf, stem, flesh, seed, stone and root, but the contents of these trace elements differed to some extent among different organs, trees or cultivars. The contents of Fe, Mn, Cu, Zn and Ni of all the organs in Canarium album Raeusch.

结果表明：除Ni在种子中未检出外，所测6个元素在橄榄新叶、老叶、茎、果肉、种子、果核、根等器官中均有一定的分布；各微量元素在不同器官、不同植株以及不同品种之间存在一定的差异。

Copper-zinc superoxide dismutase was purified from Canarium album by ultrasonic, precipitation with ammoniurn sulfate,Sephadex G-100 filtration and DE-52 chromatography.

采用超声波破碎、硫酸铵分级沉淀、Sephadex G-100和DE-52柱层析，从橄榄中分离纯化Cu，Zn—SOD，并对其部分性质进行分析鉴定。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。