The average positron lifetimes was explained by a proposed model, in which the shifting of Fermi-level affects the defect ionization and consequent positron trapping at defects site.
Some quantum data such as ionization energy, advanced linear orbital level and conjugated energy were calculated by quantum chemical initial calculation method.
采用量子化学从头算的方法，对电离势、前线轨道能级和共轭能进行了计算。
3
The micro-level DINP in polyester plastics was studied by normal phase high performance liquid chromatography-electrospray ionization mass spectrometry (NP-HPLC/ESI MS).