MNDO calculations and group theory were carried out on tetraphenyl porphyrine(TPP) to obtain its optimum molecular geometry.

运MNDO计算和群论，优化得到了较满意中位取代卟啉(H2TPP)分子。

An investigation is also made on determining DMDAAC qualitatively by bromophenol blue test and quantitatively by tetraphenyl boron sodium precipitation reac...

溴酚蓝对DMDAAC进行定性分析，硼酸钠及折光率法进行定量分析方法进行了探讨。