查询词典 sodium

By reacting isobutyraldehyde with diethyl oxalate using sodium methoxide as catalyst,3-methyl-2-oxobutanoic acid,sodium salt was prepared by one pot.

3-甲基-2-氧代丁酸钠是一种重要的酮酸类化合物，它在制药工业、高分子工业、食品工业、日化业等领域都有着广泛的用途。

The data of element analysis,melting point,IR and NMR for the product are consistent with the standard data,the purity exceeds 98%.3-methyl-2-oxobutanoic acid sodium ; sodium methoxide ; isobutyraldehyde ; diethyl oxalate

WSR-1熔点仪；Vario EL元素分析仪(德国E le-mentar公司)；Nexus 870型傅立叶变换红外光谱仪；aV500核磁共振仪。1.2 3-甲基-2-氧代丁酸钠的制备将15.4 g(0.28 mol)甲醇钠与60 mL(1.5 mol)甲醇装入500 m

It indicates that the raw materials can be stored in temperature of 0-4℃ for 60 days, they must be immersed in clean water for more than one hour before processing, and peeling be carried out in flowing water; that color preserving solution should be 1.0% NaCl+0.2% citric acid+0.5% Vitamin C+110ppm dichloro isocyanuric acid sodium; that combined browning inhibiting solution is conspicuously effective, and immersion time better be around 20 minutes; that sterilization solution ought to be 200ppm dichloro isocyanuric acid sodium+0.5% ascorbic acid+0.3 citric acid, and 10 minutes' immersion will achieve the effect of sterilization and inhibiting browning; and that after 20-21 minutes of quick-freezing in temperature of -31℃~-32℃, the products can be preserved under -18℃ for a whole year.

通过对速冻牛蒡加工过程中原料储存、削皮方法、护色、浸泡时间、无热杀菌、包装形式等参数进行研究表明：原料0-4℃可储存60天，加工前用清水浸泡1小时以上，削皮时在流水中进行，护色液筛选的1.0% NaCl＋0.2%柠檬酸＋0.5%维生素C十110ppm二氯异氰脲酸钠；复合褐变抑制溶液在抑制褐变方面有显著的效果，浸泡处理时间为20分钟为宜；杀菌液为200ppm二氯异氰脲酸钠＋0.5%抗坏血酸＋0.3柠檬酸，浸泡10分钟即可达到灭菌和抑制褐变的作用；经-31℃~-32℃温度下速冻20~21分钟，产品在-18℃条件下可储存一年。

Objective: Shuanghuanglian inoculation and the infusion solution needs to use the sodium hydroxide in the production process to carry on many times mediates the pH value and the infusion solution needs to mediate the isotonia, therefore can introduce a quota the sodium element.

目的：双黄连注射液及滴注液在生产过程中需要多次使用氢氧化钠进行调解pH值并且滴注液需要调解等渗，因此会引入一定量的钠元素。

The stable or unstable state of the montmorillonite-water dispersion is mainly effected by the properties of montmorillonite, water, and stabilizers as well as their interactions, while the type, the structure, the properties and the concentration of the stabilizer play dominate roles. Based on the molecular designing clues, this research selected three sulfonated copolymers as the stabilizers, i.e. the sodium 2-acrylamido-2-methyl-1propane sulfonate /acrylamide /disodium itaconate terpolymer, the AMPS/AM/N-vinyl pyrrolidone terpolymer and the sodium styrenesulfonate /IA copolymer. The preparation and characterization of the sulfonated copolymers were discussed, the high-temperature stability of the montmorillonitewater dispersion was characterized with the rheology, the filtration, the particle size distribution, the electrostatic properties, and the adorption of the sulfonated copolymers onto montmorillonite particles. At the same time, a systematic mechanism of the hightemperature stabilization of the dispersion was presented.

本文构筑了分子设计的思路，选取AMPS(2-丙烯酰胺基-2-甲基丙磺酸钠)/AM/IA三元共聚物、AMPS/AM/NVP三元共聚物和SSA/IA二元共聚物等三种磺化共聚物作为蒙脱土-水分散体系的高温稳定剂，进行了磺化共聚物稳定剂的制备与表征；从流变学、滤失性能、粒度分布、电性质以及磺化共聚物在蒙脱土上的吸附作用等方面，对蒙脱土-水分散体系的高温稳定性进行了研究，考察了蒙脱土-水分散体系的高温稳定性能，同时提出了高温稳定机理。

They have a common feature, i.e. a food with low sodium and high kalium; therefore, they can be used as supplementary foods for restricting illness caused by sodium and salts.

另外，香蕉和芭蕉还可作肥胖病和衰老病者的食品，也曾被推荐为治疗小儿腹泻和腹腔病，以及减轻肠炎的碳水化合物的给源。

Results When the cells were treated with Sodium Selenite at a concentration of 2.0mmol//L lasting 72h, karyopyknosis and chromatin condensation were observed under microscope; When the cells were treated with Sodium Selenite at a concentration of 4.0mmol/L lasting 72h, the cells in G0/G1 and S phase was significantly decreased, a typical apoptosis peak before G1 phase was shown.

结果 2.0mmol/L亚硒酸钠作用72h， HE切片可见核固缩、染色质边集等改变；4mmol/L亚硒酸钠作用72h， G0/G1期和S期细胞明显减少，在细胞周期G1前期可见典型的细胞凋亡峰。

A technique of simultaneous quantitative determination of sodium laurate and sodium dodecyl bezene sulfonate in mixed solutions is developed by using high performance liquid chromatorgraphy.

建立了用高效液相色谱法同时测定月桂酸钠和十二烷基苯磺酸钠浓度的方法。

Methods: In acute or chronic experiment, all SD rats were randomly divided into three groups which included microthromboembolism group with the injection of 400 μg sodium laurate into the coronary arteries of SD rats, TS group with drinking telmisartan (10 mg/kg), and NS group with NS instead of drinking telmisartan (10 mg/kg), and NS group with NS instead of sodium laurate.

将SPF级SD大鼠冠状动脉注射月桂酸钠400μg后，随机分入微栓组和替米沙坦组（饮水中给药10mgkg^(-1)d^(-1)），对照组则以等量生理盐水替代月桂酸钠。

The results showed that sodium stearoyl glutamate and sodium lauryl sulfate are good co-emulsifiers for APG and they do not effect significantly on the formation of liquid crystal.

实验结果表明，在助乳化剂与烷基糖苷的复配过程中，硬脂酰谷氨酸钠和十二烷基硫酸钠有较好的助乳化作用，且对液晶的形成影响不大。

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。