high-purity

Synthesis of High-Purity Si_3N_4 Powders by Ammonolysis of SiCl_4

SiCl4氨解法制备高纯度的Si3N4粉的研究

With the extensive application of Li battery, more and more high-purity lithium metal are needed.

随着锂电池的广泛应用，对高纯度金属锂的需求量越来越大。

Study on Application of Alumina in High-Purity Andalusite Based Refractory

红柱石基材料中氧化铝原料的应用研究

Preparation process and commercial operation of high-purity dysprosium metal is studied.

对高纯金属镝的制备工艺进行了研究，并用此工艺进行了工业实践。

Preparation of the high-purity medical alpha hemihydrate gypsum and further controlling of the crystal granularity, the appearance by using hydrothermal production process in pressure.

目的制备高纯度的医用α半水石膏并能进一步控制好晶体的粒度、形貌。

A method for determination of trace arsenic in high-purity boracic acid by hydride generation atomic fluorescence spectrometry is presented.

研究了氢化物-原子荧光光谱法测定高纯硼酸中痕量砷的方法。

Solvent pulping could get the high-purity lignin with the natural structure of the lignin being well-preserved.

溶剂制浆可以获得天然结构保存较好的高纯度木质素。

The main materials are high quality bauxite, fused corundum and high-purity spinel etc.

采用优质高铝矾土 、 电熔刚玉和高纯尖晶石等做为主要原料.

The production and application of photoresist, specialty chemicals for flat panel display, printed circuit board material, high-purity reagent, specialty gas and packaging material in China were summarized. At present, 1000 electronic chemicals can be produced in China in commercial scale or in batches.

综述了我国光刻胶、FPD专用化学品、印刷电路板材料、高纯试剂、电子特种气体和封装材料的生产和应用现状，目前我国能工业化生产或批量生产的电子化学品近1000种。

A porcelain-fused-to-metal material was prepared using the domestic high-purity feldspar powders.

用高纯长石粉等国产原料，采用熔融后水淬、湿法球磨的工艺，制备齿科用金属烤瓷材料。

A method in which the matrix was matched to calibration curve has been proposed for the direct determination of 13 trace impurities in high-purity tantalum pentoxide by ICP-AES.

本文提出了基体匹配校准曲线，ICP-AES法直接测定高纯氧化钽中13种杂质元素的分析方法，并考察了光谱干扰以及基体效应的影响，确定了仪器最佳工作条件。

Preparation of high-purity oleic acid by selective reaction

选择反应法制备高纯油酸

Study on producing high-purity ferric oxide from sulphur concentrate

硫精矿制备高纯氧化铁

Preparation of High-Purity Lithium from Primary Product of Li_2CO_3 in Qarhan Salt Lake

青海盐湖初级碳酸锂产品制备高纯金属锂研究

Effect of Recrystal Granularity of High-purity Aluminium Foil on It's Specific Capacitance

高纯铝箔再结晶晶粒度对比容的影响

Diffusion experiment with high-purity helium gas for cooling ions in linear ion trap

线型离子阱中冷却离子所需高纯度氦气的渗透与实验

The use of SDS method can effectively leach polysaccharide, protein, RNA, hydroxybenzene and other impurities and also extract high-purity unbroken genome DNA from fixed specimens with absolute ethyl alcohol.

SDS方法可有效地去除多糖、蛋白、RNA、酚等杂质，且可从无水乙醇固定的标本中提取高质量DNA。

Nonlinear Wave Traveling in High-purity Internal Thermally Coupled Distillation Column

高纯内部热耦合精馏塔的非线性Wave传播特性

And high-purity Al2O3 ceramic substitute for the purity of the low more and more obvious, but due to the high-purity ceramic difficult to sinter restrict to application.

并且高纯度的氧化铝陶瓷替代低纯度陶瓷的趋势越来越明显，但高纯度陶瓷烧结的困难极大地限制了其大规模应用。

Diatomaceous earth filtration as effective pretreatment for preparation of high-purity water

高纯水制备的有效预处理&硅藻土过滤

Determination of Trace Elements in High-purity Holmium Oxide and Lutecium Oxide by Spark Source Mass Spectrometry

一氧化氮与葡萄膜炎火花源质谱法定量分析高纯氧化钬和氧化镥中痕量元素

Determination of 13 Trace Impurities in High-Purity Tantalum Pentoxide by ICP-AES

ICP-AES测定高纯氧化钽中13种杂质元素

Through removing the impurity from the decarbonization gas in hydrogen manufacturing installment, the high-purity liquid carbon dioxide was produced with pressure and cryogenic craft, applications in the processing manufacturing industry and food industry were introduced.

通过对制氢装置脱碳气进行脱杂质精制，采用加压深冷工艺，制取高纯度液体CO2，应用于加工制造业和食品工业。

With the development of science and technology, the demand of ultra-fine high-purity alumina powder is increased.

基于 超 细高纯氧化铝随着科学技术的发展需求量越来越大,也对其制备方法做了扼要叙述.

High-purity ultrafine magnesium hydroxide was prepared by ambient temperature-state reaction using hexammoniated magnesium chloride as material.

以自制的六氨氯化镁为原料,采用常温固相法制备了高纯超细氢氧化镁.

Electrolytic Preparation of High-Purity Gold-Potassium Cyanide

高纯氰化金钾的电解制备法

Silver cyanide and potassium silver cyanide are master salts of plating silver, and the quality of potassium silver cyanide has a great influence on the life of plating bath land coating. The high-purity of potassium silver cyanide is required by modern plating silver technique.

氰化银和氰化银钾是电镀银的主盐，其中氰化银钾的质量直接影响着镀层和镀液的寿命，现代镀银技术要求使用高纯度的氰化银钾。

High-purity muscle-derived stem cells can be obtained through primary culture, and immunohistochemical technique can identify muscle-derived and specific characteristics of stem cells, so it has a broad application perspective in tissue engineering and gene therapy.

高纯度的肌原性干细胞可通过体外原代培养获取，免疫组化技术可鉴定其肌源性和干细胞特性，在组织工程和基因治疗中具有广泛的应用前景。

The AAV virus with high-purity, high enrichment and high titer are got though protein electrophoresis detection and virus electric mirror picture.

通过蛋白电泳检测及病毒电镜图片显示最终得到高纯度、高浓缩、高滴度的AAV病毒。

The FeSO_4 obtained by reduction is purified, adding to NH_4OH-NH_4HCO_3 solution containing organic additives, precipitated and finally washed and then calcined at 900 ℃ for 2 hours. The calcined product is washed using dilute nitric acid and hydrofluoric acid, obtaining high-purity α-Fe_2O_3.

还原后得到的硫酸亚铁经过净化除杂，滴加到含有适量有机添加剂的沉淀剂NH4OH-NH4HCO3中，沉淀洗涤干燥后900℃煅烧2h，煅烧产品再用稀硝酸和氢氟酸洗涤，得到高纯球形-αFe2O3。