查询词典 sodium

MethodsBy high perfomance liquid chromatography method, mobile phase was acetamide plus water solution of sodium heptansulfonic acid and sodium phosphate.

方法采用高效液相色谱法，用乙腈与庚烷磺酸钠磷酸钠的水溶液为流动相，流速 1 。0ml/min ，柱温 4 0℃，检测波长为 2 80nm ，进样量为 2 0 μl。

A plot of absorbency versus the total concentration drop of ascorbic acid yields a straight line. The shelf-life of ascorbic acid solution calculated was 444 d (or 152 d) with sodium metabisulfite, indicating that sodium metabisulfite increases the stability of ascorbic acid significantly.

根据建立的动力学方程，从理论上计算得在维生素C溶液中加焦亚硫酸钠时的贮存期分别为444 d(或152 d)，表明加入焦亚硫酸钠能显著延长维生素C溶液的贮存期。

Sodium Hyaluronate is the sodium salt of Hyaluronic Acid.

透明质钠是透明质酸的钠盐。

Synthesis of super high molecular weight sodium polyacrylate by inverse suspension polymerization of acrylamide and sodium acrylate was studied.

以丙烯酸钠和丙烯酰胺为单体，采用反相悬浮聚合法制备了超高分子量的聚丙烯酸钠。

A further advantage of this method of working is that the sodium alcoholate can very conveniently be made by mixing the sodium with a proportion of the hydrocarbon which is to be used as the solvent for the reaction and adding the required amount of the alcohol thereto.

另外这种方法还有一个优点：纳和一定比例的碳氢化合物混合在加入所需数量的乙醇可以方便制备乙醇纳，而碳氢化合物可以作为溶剂使用。

At first,the intermediate of sodium 3-chloro-2-hydroxy propanesulfate was synthesized from epichlorohydrin and sodium bisulfite;And then,using NaOH as a catalyst,the title compound has been synthesized from intermediate and allyl alcohol to reach the yield of about 70%.

先由环氧氯丙烷和亚硫酸氢钠合成中间体3-氯-2-羟基丙磺酸钠，然后中间体再与丙烯醇在氢氧化钠催化下生成目标产物2-羟基-3-烯丙氧基丙磺酸钠。

A method for the determination of sodium stearate in sodium aluminate solution was developed.

用溶剂浮选-气相色谱法测定铝酸钠溶液中的硬脂酸钠。

The effect of sodium carbonate on the corrosion inhibition of aluminum alloy in sodium chloride solution was investigated by SEM and electrochemical means.

应用电化学实验方法和扫描电子显微镜研究了碳酸钠在氯化钠溶液中时铝合金的缓蚀作用。

A vitreous mineral consisting of sodium aluminum silicate and sodium chloride in crystalline form; occurs in igneous rocks.

一种玻璃质矿物，由钠铝硅酸盐和氯化钠组成，呈晶体状，见于火成岩中。

Inorganic agents such as sodium bicarbonate, ammonium carbonate and sodium boron hydride generate gas slowly and the gas produced by these agents is generally difficult to control.

无机物质如碳酸氢钠，碳铵和钠硼氢化物气体产生缓慢，所产生的沼气，这些代理商通常很难控制。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。