The determination of purity of copper -phthalocyanine is discussed brie fly. The volumetric and weight operation procedures are introduced. Two methods are compared and discussed.
简要论述了铜酞菁纯度的测定；介绍了容量法和重量法的操作过程，并对其进行了对比和探讨。
This paper has introduced the thermal analysis methods applied in the determination and study of the purity, melting property, changes of water contents, structures and preparation of drugs.
本文介绍了热分热方法在测定药物纯度判断药物的熔化特性。研究药物结构及剂型选择，测定含水量变化等的应用。
The determination of trace silicon in high-purity barium titanate by GFAAS method is studied, in which the sample is dissolved in hydrofluoric acid with high pressure seal.
用石墨炉原子吸收光谱法研究钛酸钡中痕量硅的测定，在高纯钛酸钡新领域的研究及生产中都有重要的现实意义。
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