benzo-

For determining trace Cadmium by using a polarographic catalytic wave, this paper proposes a new KI-Benzo-15-Crown-5-Cd complex system as a base solution.

本文提出了一种新的碘化钾苯并15冠5镉络合体系作基质，以极谱催化波测定痕量镉。

Reported herein are eight solid complex compounds obtained by reactions of uranyl nitrate, uranyl chloride and thorium nitrate with macro-cyclic polyethers dibenzo-18-crown-6, benzo-15-crown-5 and 18-crown-6 in polar solvents. The complex compounds have been characterized by elemental analysis, melting points and infrared spectro-metric analysis.

本文报道了硝酸铀酰、氯化铀酰和硝酸钍与冠醚DB18CR6、B15CR5、18CR6通过溶剂反应制得的8个固体络合物，对这些络合物进行了熔点测定、元素成分测定和红外光谱分析。

The synthesis of 3 phenyl indanone thiosemicarbazone 5,6 benzo 15 crown 5

3-苯基茚满酮-[1]-缩氨基硫脲-5,6-苯并-15-冠-5的合成