查询词典 cation

Both methods can be used to determine the entrapment efficiency of the vinorelbine bitartrate liposome. The cation exchange resin centrifugation method is preferred.

葡聚糖凝胶微柱离心法和阳离子交换树脂离心法均可用来测定重酒石酸长春瑞滨脂质体包封率，优选阳离子交换树脂离心法。

Methods The vinorelbine bitartrate liposome was prepared by pH gradient method. Sephadex G-50 and cation exchange resin could entirely separate free vinorelbine bitartrate from liposomes. The concentration of vinorelbine bitartrate was determined by HPLC. The result was analyzed with SPSS.

pH梯度法制备重酒石酸长春瑞滨脂质体，分别以葡聚糖凝胶Sephadex G-50和阳离子交换树脂装柱，离心分离脂质体和游离药物，采用HPLC法测定药物含量，计算包封率，并用SPSS软件进行t检验。

What the lysine does, Dougherty and colleagues report online this week in Nature, is change the shape of the brain receptor's box, effectively making its negative charge more accessible to nicotine--a situation known as a cation-pi interaction.

Dougherty 他们在这个星期的 Nature 网站上报道说，它能够改变大脑受体"口袋"的形状，有效地使其负电荷更好与尼古丁相作用，就是所谓的阳离子—π作用( a cation-pi interaction )。

Evidence is growing showing that oxalate may play an important role in plant biology such as cation ion balance, calcium regulation, nitrate and ferric reduction etc.

越来越多的证据表明草酸在植物中具有重要生物学功能：早期的研究表明它能在植物细胞阳离子平衡中起作用；草酸钙在细胞中的可逆性形成/分解可有效调节细胞中的Ca2+浓度；它还能促进植物硝酸还原和铁还原。

Synthesis of ethyl caproate by a strong acid cation exchange resin catalyst

研究了以强酸性阳离子交换树脂为催化剂，环己烷作带水剂，冰醋酸与异戊醇合成乙酸异戊酯的反应条件。

The results show that the oil flooding systems of carboxylate and its com-plex are unable to bear two charged metal cation.

该体系可以在较宽的矿化度范围及较宽的活性剂浓度范围内与大庆原油保持低界面张力（10￣（－2）mN／m）。

The thing how is for you to decide on a course of cation.

现在你需要做的是做一个谨慎的决定。

Cation is the key to success.

良好的教育是成功的关键。

We need more than listening , we need cation.

我们需要的不光是听得进意见，我们要的是行动。

It's the only problem worth working on in chemistry. It's the norbornyl cation problem!

它是化学里唯一值得研究的东西，它就是降樟基阳离子的问题！

This is the inheritance of the tribe of the children of Issachar according to their families, the cities and their villages.

19：23 这些城并属城的村庄就是以萨迦支派按着宗族所得的地业。

I've have enough of your garbage.

我听了你的废话。