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高纯石英     
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  high purity quartz
     Determination of Trace Uranium in High Purity Quartz by Means of ID-ICP-MS
     ID-ICP-MS测定高纯石英中微量铀的方法研究
短句来源
     Determination of Trace Uranium in High Purity Quartz by ID-ICP-MS
     ID-ICP-MS测定高纯石英中微量铀的方法研究
     The technology of the determination of boron in high purity quartz by isotope dilution ICP MS was reported in this paper.
     应用同位素稀释电感耦合等离子体质谱法 ( ID-ICP-MS)测定地质标样 ( GSD-4和 GSD-8)和高纯石英中的痕量硼。
短句来源
     Determination of Boron in High Purity Quartz by Isotope Dilution-Inductively Coupled Plasma Mass Spectrometry
     同位素稀释电感耦合等离子体质谱法测定高纯石英中痕量硼
短句来源
     The optimum conditions was systematically studied in the determination of trace calcium in high purity quartz powders by air acetylene flame atomic absorption spectrometry. A feasibility method was established that using 14% alcohol as sensitizing agent and 0.4% LaCl3 as releasing agent, at the medium of 2% hydrogen chloride, Ca was determined by Zeeman flame atomic absorption method. The interference of coexistence elements to Ca and their cancellation were investigated.
     系统地研究了用空气——乙炔火焰原子吸收光谱分析法测定高纯石英粉中钙的最佳条件 ,建立了 14%的乙醇作为增感剂 ,在 2 %盐酸介质中 ,0 .4 % L a Cl3溶液作为释放剂 ,用塞曼火焰原子吸收法测定的可行性方案 ,探讨了共存元素对钙的干扰及其消除。
短句来源
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  high-purity quartz
     Determination of Trace Calcium in High-Purity Quartz Powders by Flame Atomic Absorption Spectrometry
     火焰原子吸收光谱法测定高纯石英粉中痕量钙
短句来源
     Determination of Microamount Aluminum in High-Purity Quartz Powders by Micelle-Sensitized Spectrophotometry
     胶束增敏分光光度法测定高纯石英粉中微量铝
短句来源
     The structure of silica fibers made by high-purity quartz fusion method,acid leaching method, and sol-gel method was studied by using Raman spectroscopy and X-ray radial distribution function (RDF).
     用Raman光谱和X射线径向分布函数研究了高纯石英熔融法、酸沥滤法和溶胶-凝胶法三种不同方法制取的高纯SiO_2纤维的结构。
短句来源
     The microamount aluminum in high-purity quartz powders was determined by micelle-sensitized spectrophotometry with cetylpyridnium chloride (CPC) as a sensitivity promotor and chromium azure S(CAS) as a color reagent. The relative standard deviation is less than 2.7% (n=6) with the recoveries of 98%—104%.
     选择阳离子表面活性剂氯化十六烷基吡啶(CPC)作为铝与铬天青S(CAS)显色体系的增敏剂,利用胶束增敏分光光度法测定高纯石英粉中微量铝,方法回收率为98%—104%,相对标准偏差低于2.7%(n=6)。
短句来源
  high-purified quartz
     Taking quartz rock from Tonggu region of Jiangxi pr ovince as raw materials,after frag mentation,sizing,grinding,magnetic separa tion-acid leaching process,high-purified quartz micropowder with SiO2 99.9%~99.99% and high-purified quartz glass sand with SiO2 >99.5% were be produced.
     以江西铜鼓地区石英岩为原料,经粉碎-筛分分级-磨矿-磁选-酸浸工艺后,可制备成SiO2含量达99.9% ̄99.99%的高纯石英微粉和SiO2>99.5%的高纯石英玻璃砂。
短句来源
     THE APPLICATION OF MICROWAVE IN THE PRODUCTION OF HIGH-PURIFIED QUARTZ
     微波在高纯石英提纯实验中的应用
短句来源
     With the drying up of the crystal, it is necessary to substitute high-purified quartz for crystal.
     随着水晶资源的日益枯竭,利用脉石英制备高纯石英以代替水晶已经成为一项需要迫切解决的技术问题。
短句来源
     This article mainly researches the microwave application in the purification of high-purified quartz, it shows that the microwave can open the packaged iron effectively and accelerate the speed of acid leaching evidently, it not only promote the producing of the high-purified quartz but also take a solid base for that.
     通过对微波在高纯石英提纯实验中应用的研究,表明微波可以有效地“打开”石英矿物中含铁的包裹体,不仅能促进含铁杂质矿物的酸浸去除,还可以极大地加快酸浸的速度,促进高纯石英的生产,同时为微波技术在高纯石英生产中的应用奠定了坚实的基础。
短句来源
  “高纯石英”译为未确定词的双语例句
     Study on the Production of Ultra-fine High Purify Quartz
     超细高纯石英制备试验研究
短句来源
     High pure silica glass has less loss to Nd-YAG laser at 1.06μm, so it is used to prepare optical fibers for transmiting high laser power.
     Nd—YAG激光的波长(1.06μm)位于近红外区,高纯石英材料对它的吸收很少,故高纯石英玻璃制成的光纤可传输高的功率。
短句来源
     Al(Si)/AlN/MgAl_2O_4 composites were synthesized by the in-situ reaction from Al-Mg alloy and SiO_2 for 2h at temperature of 1473K in nitrogen atmosphere.
     以铝镁合金、高纯石英棒为原料,采用原位合成法在1 473 K氮气氛下保温2 h制备了Al(Si)/AlN/MgAl2O4复合材料。
短句来源
     On line measurement and control of purity of ultrafine quartz powder with high purity
     超细高纯石英粉生产过程中纯度在线检测与调控
短句来源
     Research on Preparation of High-purified Quardz Micropowder & Quardz Glass Sand from Quartz Rock
     石英岩制备高纯石英微粉和石英玻璃砂试验研究
短句来源
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  high purity quartz
An analytical procedure for the determination of uranium and thorium in the sub-ng/g range as well as of other trace elements in the ng/g to μg/g range in high purity quartz samples is described.
      
High purity quartz is the most common material for pressure vessels of high pressure digestion systems.
      
The cristobalite α-β inversion has been studied using DSC on cristobalites produced by firing high purity quartz with and without addition of a mineraliser.
      
This study represents an evaluation of Norwegian kyanite quartzite occurrences as potential deposits of high purity quartz raw material.
      
The concentrations are in the same range of concentrations of high purity quartz products, which are mined and produced in Norway and elsewhere.
      
更多          
  high-purity quartz
Mechanisms of light absorption in gamma-irradiated blanks for optical fibers based on high-purity quartz glass
      
High-purity quartz mineralisation in kyanite quartzites, Norway
      
The new Carius Tubes incorporate a liner of high-purity quartz glass that retains the sample and acids during the digestion procedure.
      
Surface Corrosion Studies on High-Purity Quartz Vessels for Digestive Sample Preparation
      
As standards, either synthetic iridium standards loaded on high-purity quartz powder, or well characterized geological reference materials, were used.
      
更多          
  pure quartz
The electron relaxation processes are different: lifetime is about 170 fs in pure quartz and fused silica, and about 100 ps in K9 and Soda Lime glass.
      
Considering the biological reactivity of pure quartz in lung cells, there is a strong interest to clarify the cellular effects of respirable siliceous dusts, like bentonites.
      
The samples were precipitated on a pure quartz fiber filter tape and analyzed shortly afterwards non-destructively by an energy dispersive X-ray spectrometer (EDXRS).
      
The long trails imply exceptionally high ductility, which, coupled with microstructural criteria, and admixture of quartz from neighbouring pure quartz aggregates by grain boundary sliding, is interpreted in terms of superplastic flow.
      
Addition of powdered samples of both rock types to the pure quartz-H2O system results in a linear decrease of the quartz-H2O dihedral angle with increasing temperature.
      
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  其他


The structure of silica fibers made by high-purity quartz fusion method,acid leaching method, and sol-gel method was studied by using Raman spectroscopy and X-ray radial distribution function (RDF).Both test results indicate that the amount of broken bonds in the above t hree kinds of fibers is different nbvi-ously,and is much more than that of a fused bulk silica glass. The atoms connected the broken bonds are differ-ent from those made by different methods. RDF indicates that there exists a specified atom-atom...

The structure of silica fibers made by high-purity quartz fusion method,acid leaching method, and sol-gel method was studied by using Raman spectroscopy and X-ray radial distribution function (RDF).Both test results indicate that the amount of broken bonds in the above t hree kinds of fibers is different nbvi-ously,and is much more than that of a fused bulk silica glass. The atoms connected the broken bonds are differ-ent from those made by different methods. RDF indicates that there exists a specified atom-atom spacing in theacid leached fihar, which distributes between the nearest Si-to-Si spacing and the second nearest Si-to-Sispacing,The formation processes of the structure are discussed.

用Raman光谱和X射线径向分布函数研究了高纯石英熔融法、酸沥滤法和溶胶-凝胶法三种不同方法制取的高纯SiO_2纤维的结构。结果表明,不同方法制备的SiO_2纤维中的断键数目相差很大,并且都远高于块状石英玻璃,断键上连接的原子团也与制备方法有关。径向分布函数表明,沥滤法纤维中存在一种Si-O-Si连接,其Si-Si原子间距分布于近邻Si与次近邻Si之间。结合不同制备方法的特点对各种纤维结构的形成机理进行了讨论。

High pure silica glass has less loss to Nd-YAG laser at 1.06μm, so it is used to prepare optical fibers for transmiting high laser power. In this paper, two types of optical fiber are prepared by using silica glass, loss: 0.01 -0.03dB / m, optical fiber output power: > 136W.

Nd—YAG激光的波长(1.06μm)位于近红外区,高纯石英材料对它的吸收很少,故高纯石英玻璃制成的光纤可传输高的功率。本文利用高纯石英玻璃制成了两种类型的大功率激光传输光纤,传输损耗在0.01~0.03dB/m,光纤输出功率大于136W。

The sample treatment method and points for attention about determination of trace Fe in high purity quartz sand by means of FAAS have been presented in detail. The method can exactly determine trace Fe in high purity quartz sand and its products. The characteristics of the method are simple, exact and reliable.

本文详细介绍了用火焰原子吸收法测定高纯石英砂中的微量铁以及高纯石英砂的样品处理方法和注意事项 ,此法能够准确地测定高纯石英砂或高纯石英制品中的微量铁 ,方法简便、准确、可靠

 
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