fullerene is a kind of carbon simple substance that the graphite evaporates, it has a variety of biological functions.

the discovery and application of spherical carbon simple substance molecule

球状碳单质分子的发现、研究现状及应用前景

mannose composition was determined by gas chromatography.

高效液相色谱法测定三氟甘露糖的含量气相色谱法分析结果表明其主要由甘露糖和半乳糖组成，含少量的阿拉伯糖，摩尔百分比为65.6%：33.0%：1.4%。

gc quantitative analysis method is established for pentafluoroethyl iodide analysis.

建立了五氟碘乙烷进行气相色谱定量分析方法。

latest advances in the gaseous phase catalytic synthesis of difluoromethane and the preparation of catalysts are summarized.

综述了二氟甲烷的气相催化合成工艺及其催化剂制备的最新进展；

the fluorine mixed gas prepared by this device, which may prolong the working hours of excimer-laser 2 to 3 times and prolong the average useful time of lens of laser 3 to 5 times.

按规程应用该装置配制的含氟混合气，可以使准分子激光器的有效工作时间延长2~3倍，激光器中镜面的使用寿命平均延长3~5倍。

theoretical investigation on the proton transfer isomerization mechanism of 5-fluorocytosine in the gas and water-assisted

5-氟胞嘧啶气相及水助质子转移异构化的理论研究

study on the new technology of gasphase chlorination for 3-chloro-4-fluoronitrobenzene

3-氯-4-氟硝基苯气相氯化新工艺探讨

catalysts for the preparation of hexafluoroacetone through hexafluoropropylene oxidation in gas phase

六氟丙烯气相氧化合成六氟丙酮的催化剂

emission of all kinds of pollutions is in the limit of gb/ 6297-1996& the general emission standard for the pollution to the air, with the gas collection rate of 99%, powder cleaning rate of 99.99%, plus the zero emission of fluoride gas.

烟气集气效率达99%，粉尘净化效率99.99%，实现氟气的零排放。

in this paper, we introduce mechanism of the anode effect occurred in the surface of carbon electrode in the course of producing fluorine and take steps to prevent the anode effect and eliminate its effect after it occurs.

本文介绍了在生产氟气的过程中碳电极发生阳极效应的机理，并提出了阳极效应的预防措施及其发生后的消除措施。

an integrated fluorine supply strategy has been demonstrated to be the most effective means of implementing a safe and reliable fluorine supply to users seeking a low-cost replacement for standard chamber clean chemistries.

对一般气相沉积反应器清洗而言，一体化氟气供应策略，对寻求低价取代方案的使用者而言，是最安全和稳定的供应方式。

chemical and physical properties of fluorine and its safety, storage and shipment, preparation process are introduced, some valuable derivatives of fluorine and their applications are also discussed.

介绍了氟气的物理化学性质、安全与储运、制备工艺，并就一些有价值的氟气下游产品的性质和用途进行了讨论。

the corrosion-protection precautions were compared for the fluorine blowers which are used in the production system of phosphate fertilizer and easy to be severely corroded by the chemical mediums.

文中对受化学介质腐蚀严重的磷肥工业生产系统中的氟气风机的防腐蚀措施进行了比较，并介绍了选用不同配方的浸泡试验。

in order to control and keep watch on the fluorine purity, the gas chromatography with series parallel connection of nine columns with two tubs is developed.

为了有效监控生产过程中的氟气纯度，研制了色谱法氟气纯度分析仪。

the unit has run for one year with good environmental and economic benefits, and the byproduct sodium fluorosilicate reaches the first-class product standard in quality.

装置投入运行1年来，取得了较好的环境效益和经济效益，使氟气总吸收率达99%以上，并可副产氟硅酸钠，其产品质量达一级品标准。

in the pressure control system of the fluoride gas station, the pressure of fluoride in high-pressure tank has great influence on the system security.

在氟气加气站压力控制系统中，氟气高压罐压力的稳定性对系统的安全性和其他参数影响很大。

in order to reduce the expense of fluorine production, carbon electrode is applied to producing fluorine by moderate temperature electroanalysis.

为降低生产成本，中温电解法生产氟气所用电极材料为碳。

absorption of fluorine from ammonium phosphate production by water in two chambers and one tower to give byproduct sodium fluorosilicate

二室一塔水吸法吸收磷铵氟气副产氟硅酸钠

preparation of fluorine, derivatives and its applications

氟气制备及其下游产品与应用

development of gas chromatography for analysis of fluorine purity

色谱法氟气纯度分析仪的研制