硫酸

The antimonydoped tin oxide nanoparticles were synthesized at 240 ℃ for(17 h) by the complexinghydrothermal oxidation method using stannate,antimony white and sulphuric acid as the starting materials,sodium hydrotartrate as the complexing agent and hydrogen peroxide as the oxidant.

以锡酸钠、锑白和硫酸为原料，酒石酸氢钠为配合剂，双氧水为氧化剂，采用配合水热氧化法在水热氧化温度为240℃和水热保温时间为17 h时，合成单分散性的蓝色锑掺杂二氧化锡粉末，用差热分析、红外光谱、X射线衍射和透射电镜对所制得的粉末进行表征，并对ATO纳米粉体的配合水热氧化合成机理进行探讨。

The antimonydoped tin oxide nanoparticles were synthesized at 240 ℃ for(17 h) by the complexing hydrothermal oxidation method using stannate,antimony white and sulphuric acid as the starting materials,sodium hydrotartrate as the complexing agent and hydrogen peroxide as the oxidant.

以锡酸钠、锑白和硫酸为原料，酒石酸氢钠为配合剂，双氧水为氧化剂，采用配合水热氧化法在水热氧化温度为240℃和水热保温时间为17 h时，合成单分散性的蓝色锑掺杂二氧化锡粉末，用差热分析、红外光谱、X射线衍射和透射电镜对所制得的粉末进行表征，并对ATO纳米粉体的配合水热氧化合成机理进行探讨。

The preparation of anticoagulant cellulose sulfate was investigated by five factors quadri-rotation orthogonal experiments and statistical optimization analysis.

对抗凝血纤维素硫酸酯制备过程进行五因素二次旋转正交实验和统计优化分析。

Objective To study the effects of zinc stearate and PEG 6000 on the stability of clopidogrel bisulfate tablets.

摘要目的考察硬脂酸锌和PEG6000对硫酸氢氯吡格雷片稳定性的影响。

In this paper,the basic magnesium sulfate whisker which was modified by sodium stearate was added into polypropylene base.

将碱式硫酸镁晶须经硬脂酸钠改性后，添加到聚丙烯基体中，考察了复合体系的力学性能和阻燃性能，并对改性前后晶须在聚丙烯基体中的分散情况做了比较。

Guagzhou Chenliji Pharmaceuticel Factry,Guangzhou,Guangdong 510180）Abstract To establish a method for the identification of storax and the determination of cassia acid in storax by HPLC. Methods: TLC and HPLC were applied.

HPLC在适当的条件下，采用色谱峰检出法，TLC采用硅胶GF254薄层板，ψ(石油醚∶正己烷∶甲酸乙酯∶甲酸)=10∶30∶15∶1为展开剂，荧光及硫酸乙醇喷雾两次检出；定量采用ODS C18色谱柱（4.6 mm×150 mm×5μm），流动相：ψ=58∶42∶0.3，检测波长271 nm，流速：1 mL/min。

The effect of H2SO4 concentration and reaction time on the xylose yield and the selectivity of hemicellulose hydrolysis in corn stover under 121 ℃ was studied by response surface methodology.

通过响应曲面法，研究了反应温度为121℃时，不同硫酸浓度和反应时间对玉米秸秆中半纤维素水解为木糖的产率以及选择性系数的影响。

The adequate processing conditions for the feedstock used were found to be organic solvent / corn stover ratio of 3, temperature 160℃, catalyst content3％, and heating time 2.5 hours.

优化试验结果表明，在较佳的液化效果下，有机溶剂同玉米秆的混合比率为3：1，反应温度160℃，稀硫酸浓度3％，反应时间2.5 h。

A new method was established to determine streptomycin sulfate .

建立了测定硫酸链霉素的新方法。

The product of high-purity strontium oxide can be acquired after stoving and burning the precipitate of high-purity strontium oxalate,which is formed by means of adding high-purity oxalic acid under the condition of appropriate pH range.

以分析纯硝酸锶为原料，采用硝酸锶分次重结晶同时加入适量的硫酸除去钡及其它杂质，加入适量草酸除去钙杂质，然后选择合适的pH值加入高纯草酸制得高纯草酸锶沉淀，经烘干灼烧后得到高纯氧化锶产品。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。