您要查找的是不是:
- The Metallurgical Certified Reference Materials (M-CRMs) is a kind of special industrial product. 冶金标准样品是一类特殊的工业产品。
- The necessity of the development of new generation of certified reference materials (CEMs) and the role that NAA will play in the certification of those CRMs are discussed. 讨论了研制适用于微分析质控的新一代有证标准物质(CRM)的必要性,以及NAA在新一代CRM认证中的作用。
- The preparation process, data processing and certification result for certified reference materials(CRMs) of casting aluminium alloy containing P for spectral analysis were disscused. 介绍含磷元素铸造铝合金光谱分析标准样品的制备工艺、数据处理及定值结果。
- Mostly, the details in the preparation procedure that should pay attention, and measures be taken for assuring homogeneity and stability of the certified reference materials (CRMs) are discussed. 重点讨论和分析制备过程中应注意的细节以及为了保证均匀性和稳定性所采取的措施。
- Three kinds of certified reference materials of pyrethroid( deltamethrin Cypermethrin fen-valcrate) have been prepared by recrystallization, and their homogeneity, stabilities and purities studied by GC and HPLC. 用重结晶方法制备三种除虫菊酯农药标准物质:溴氰菊酯、氰菊酯、戊菊酯,并采用二种准确可靠的分析方法:气相色谱法和液相色谱法,对它们的均匀性、定性和定值方法进行了研究。
- Through optimization of excitation parameters of the glow-discharge source and calculation of the sputtering rate of the certified reference materials, a method for the quantitative surface analysis of nc-Si:H film was established. 方法应用于实际掺杂纳米硅薄膜样品的分析,并将分析深度、剖析结果与表面形貌仪的结果进行了对照。
- The four reference materials, as Certified Reference Materials(CRMs), had been approved by State Bureau of Technical Suppervision in 1997. The serial numbers are GBW07295, GBW07296, GBW07315 and GBW07316 respectively. 这4个标准物质已于1997年被国家技术监督局批准为国家一级标准物质,序号分别为GBW07295,GBW07296,GBW07315和GBW0731。
- Abstract The necessity of the development of new generation of certified reference materials (CEMs) and the role that NAA will play in the certification of those CRMs are discussed. 摘要 讨论了研制适用于微分析质控的新一代有证标准物质(CRM)的必要性,以及NAA在新一代CRM认证中的作用。
- The certifcating methods of melting points and freezing points for five LGC certified reference materials for melting point, their determined results and the evaluation of uncertainty are introduced. 介绍英国政府化学家研究所(LGC)研制的五种熔点标准物质的熔点和凝固点的定值方法、定值结果及不确定度的估计。
- The developing process of the certified reference material of polymethyl methacrylate for oxygen index was introduced. 介绍聚甲基丙烯酸甲酯氧指数标准物质的研制过程。
- The structure of the certified reference material(CRM) of butadiene nitrile rubber (BNR) was characterized by 1H _ NMR. 应用1H-NMR技术对系列丁腈橡胶(BNR)标准物质的结构进行了表征。
- The certified reference material mainly consists of polyisobutylene and hexadecane with good homogeneity and stability. 聚合物流变特性标准物质主要由聚异丁烯和十六烷组成。
- The test and assessment for the homogeneity of a certified reference material are introduced. 介绍标准物质的均匀性检验及其评价方法。
- The organic composition CRMs developed recently by National Research Center for Certified Reference Material (NRCCRMS) are tabulated in this paper. 列出了国家标准物质研究中心最近研制的有机成分标准物质。
- The result shows that the homogeneity and stability of the certified reference material are good and the certification is accurate and reliable. 试验结果表明,该标准物质定值结果准确,均匀性、稳定性良好。
- Abstract: The uncertainty of certified values of certified reference material (CRM) for spectroscopic analysis and its determining method have been expounded. 文摘:论述了光谱分析用标准物质标准值的不确定度。
- Technology on purification of HMX was studied with the industrial special-class product as primary substance,and the certified reference material of HMX prepared. 以工业特级品HMX为基体,研究了HMX的纯化工艺,制备出军用纯度标准物质HMX。
- Certified reference material of the high-purity silicasol was prepared by removing impurity ions from the high purity silicasol according to the ion exchange resin. 采用离子交换法实现了高纯硅溶胶主成分与众多杂质离子的分离,并制备了高纯硅溶胶标准物质。
- This method was applied to the determination of a ferroniobium certified reference material and the results compare favourably with the certified values. 用本法测定一铌铁标样,测定值与认定值相吻合。
- spectral certified reference materials 光谱标准物质