Analytical chemistry is concerned with the chemical characterization of matter and the answers to two important questions: what is it (qualitative) and how much is it (quantitative).
分析化学是研究物质的化学特征并能回答两个中药问题：是什么(定性)以及有多少(定量)。
Physical and chemical characterization of the catalysts as well as some import catalysts also was carried out by means of atomic spectra, activity and BET surface area measurement, XRD and IR etc.
用原子吸收、碘价分析、BET比表面测定、XRD和IR等手段对上述催化剂以及进口催化剂进行了物理和化学表征。
After a potential new drug substance is discovered and undergoes definitive chemical and physical characterization, a great deal of biological information must be gathered.
当一种潜在的新药被发现并经历了明确的化学上及物理学上的鉴定之后，还有很多生物学的信息需要收集。
Chemical and physical preparation methods of gold nanoparticles were reviewed. The spectral and microscopic characterization techniques were introduced. References of 102 were cited in this paper.
综述了金纳米粒子的化学和物理制备方法，介绍了金纳米粒子的表征技术，以及金纳米微粒在生化免疫分析中的应用，引用文献102篇。
The major aspects of the recent development in the growth, characterization and applications of the hetero epitaxial diamond films by chemical vapor deposition were reviewed.
评论了国内外化学气相沉积的异质外延金刚石膜制备技术、性质表征以及应用和展望。
The research progress of chemical crosslinking of PVC was reviewed. The structure characterization of the crosslinked PVC was discussed, with emphasis on the crosslinking methods.
综述了应用化学方法制取交联聚氯乙烯的研究进展，对各种交联方法进行了深入探讨，并对交联聚氯乙烯的结构表征方法进行了介绍。
In the siting and site characterization studies for high-level radioactive waste repository, the chemical features of groundwater are one of the most important evaluation factors.
在高放废物处置库场地选择和性能评价中，地下水化学特征是最重要的因素之一。
A analysis was focused on the chemical composition, morphology and surface characterization of both wheat straw fiber and wood fiber.
本研究从化学组分、纤维形态和表面性质三方面分析比较了麦秆纤维与木材纤维。
The performance characterization of SSP by SEM, and estimation of physical and chemical forming process of SSP by temperature field of line focused area are analyzed.
并通过对线聚焦加热区的温度场测量分析推断颗粒硅带的物理化学形成过程。
Direct characterization technologies for chemical analysis of fibers, without a previous separation of the components or component groups from each other, were reviewed.
该文主要介绍在不对纤维组分进行预先分离的条件下，纤维化学特性的表征技术。
The Renishaw SEM-Raman, when installed in the JEOL SEM, pinpoints the exact chemical identities of molecular compositions, making it a powerful materials characterization tool.
当把这种分光仪安装在JEOLSEM上，其就可以准确描述各组成分子的化学结构特征，从而使其成为一种功能强大的材料特性分析工具。
The detailed characterization of a rotating arm collector to sample ambient fog droplets for chemical analysis is discussed.
本文阐述了一种用来采集周围雾滴进行化学分析的回转臂采集器的详尽特征。
Characterization method of defects in silicon carbide by chemical etching and optimal process parameters are obtained.
论文得到了用腐蚀法表征碳化硅材料缺陷的方法和优化的工艺参数。
The XRD characterization and chemical analysis of boron concentrates and tailings showed that pinnoite and calcined gypsum has been basically separated through reverse flotation.
此外，还考察了擦洗对硼矿富集的影响，结果表明擦洗可以有效去除柱硼镁石矿中的可溶性盐，改善了浮选效果。
The XRD characterization and chemical analysis of boron concentrates and tailings showed that pinnoite and calcined gypsum has been basically separated through reverse flotation.
此外，还考察了擦洗对硼矿富集的影响，结果表明擦洗可以有效去除柱硼镁石矿中的可溶性盐，改善了浮选效果。
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