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The results of experiments and analysis shown that the clay mineral is mainly gerundive, montmorillonoid is little, but a great quantity of sodium-ion in gerundive soil and larger pH make the soil as well as montmorillonoid which is intense dispensability, These are two keys for the soil to disperse.

试验和分析结果表明,土样中的粘土矿物主要以伊利石为主,蒙脱石含量较少;伊利土中含有大量的钠离子,使得伊利土象钠蒙脱土一样具有强分散性;pH值较高,使得土壤颗粒之间的净势能表现为斥力,这也促使土样土样产生分散性。

A fluorimetric method is developed for the determination of cefotaxime sodium. The proposed method is based on the enhancive effect of cefotaxime sodium on the oxidation reaction of K2S2O8 for phloxine in neutral medium.

在过硫酸钾存在下的近中性介质中,头孢噻肟钠能够增强荧光桃红的荧光强度,从而建立了荧光法测定头孢噻肟钠含量的新方法。

The chemical stability of Vanisperse-A sodium lignosulphonate in the electrolytic enviroment simulating the floating charge of lead-acid battery was studied.

研究了Vanisperse-A木质素磺酸钠在模拟铅酸电池浮充的电解环境下的化学稳定性,利用UV-Vis和FT-IR光谱,分析了木钠分子中某些官能团的变化情况。

According to the result of experiment, 0.5% sodium hyaluronate was chosen as gel base to select the enhancers. By the result of rheology, the sodium hyaluronate gel possess the property like pseudoplastic fluid, and viscosity was high/low in low-frequency/high-frequency, which was propitious to spreading and glutinousness.

在处方前研究工作的基础上,以药物体外经皮累积渗透量为指标,考察了HPMC和玻璃酸钠对药物体外经皮渗透的影响,根据实验结果选用0.5%玻璃酸钠为凝胶基质进行促渗剂的筛选。

This new methods can shun corrosiveness of liquid bromine or gas hydrogen bromide released during bromating reaction to the equipments and eliminate harmfulness to the operating worker and environment.

研究以溴化钠/溴酸钠完全代替传统的溴素作为溴代试剂合成了四溴双酚A,避免了使用溴素和因溴素作为溴代试剂时产生的溴化氢对设备、操作人员以及环境的危害。

In this paper,the process of sodium hypophosphite production and equipment is summarized,new views and suggestions are put forward according to corresponding technological exploitation.

王书林,沈万涛,次磷酸钠生产工艺及反应器的优化对生产次磷酸钠工艺及主要设备进行了评述,对相应的技术开发提出了新的见解和建议。

This paper studied the preservative effect of different coating agent s on marrow squash Cucurbita ovifera L.

研究了不同涂膜处理对金瓜的常温贮藏保鲜效果,结果表明:由海藻酸钠0.5%+蔗糖酯0.5%+苯甲酸钠0.5%组成的复合涂膜剂对金瓜的防腐保鲜效果最好,贮藏3个月后无一腐烂,但失重率最高。

By means of electrochemical polarization,the corrosion inhibition effect on copper of sodium molybdate and triethano-lamine was evaluated.

利用极化曲线法研究了钼酸钠以及钼酸钠和三乙醇胺以特定的配比形成的复合缓蚀剂对铜的缓蚀作用。

METHODS: Heparin with an aldehyde group as reducing end was prepared by nitrous acid degradation method.

将肝素钠用亚硝酸降解法降解,得到还原末端为醛基的肝素,分别溶解于二甲亚砜、含0.05 mL,0.5 mL冰醋酸的二甲亚砜溶液,再与对巯基苯胺发生还原胺化反应,用氰基硼氢化钠作还原剂,得到带巯基的肝素衍生物。

The results showed that,through the orthogonal experiments of L9(34) and the single factor experiments of the opuntia and red date juice,the best formula of the compound beverage was 5 to 5,sugar 4%,citric acid 0.03%,and compound stabilizer consisted of 0.2% carboxymethyl cellulose sodium and 0.3% alginate sodium sterilizing temperature was 100 ℃,and sterilizing time was 8~15 minutes.

通过对仙人掌汁和红枣汁配比的单因素试验和L9(34)正交试验结果表明,食用仙人掌红枣复合饮料的最佳工艺配方为:仙人掌红枣复合汁的配比为5∶5,加糖量为4%,加柠檬酸量为0.03%,复合稳定剂加入量为羧甲基纤维素钠0.2%+海藻酸钠0.3%,杀菌温度为100℃,杀菌时间为8~15min。

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I this is at that time, the opinion with peacockish true girl is full of in a heart.

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