In this paper, the two-photon autoionization involving second-order ionization process under strong laser field is investigated.

本文研究了包括二阶离化过程的强激光场下的双光子自电离。

Tetrachloroethane in air was collected by activated carbon,desorped with carbon disulfide,separated by GDX-103 chromatography column,and detected by flame ionization detector.

空气中四氯乙烷用活性炭管采集,二硫化碳解吸,经GDX-103色谱柱分离,氢火焰离子化检测器检测。

Desorption chemical ionization mass spectrometry of twelve metallohematoporphyrin complexes has been investigated under DEP condition using mixture of tetramethylsilane and methane as regent gas.

本文以四甲基硅烷／甲烷混气，采用DEP技术，测定12个金属血卟啉络物的解吸化学电离质谱。

Acid intensity of hydrosulfuric acid and stepwise ionization balance were discussed by the use of thermodynamic principle, which are helpful to inorganic chemistry teaching.

摘要本文用热学原理对氢硫酸的强度及逐级电离平衡进行了讨论，有助于无机化学教学和学生学习。

Uranium isotope abundance ratio has been measured by total sample evaporation and signal integration,and a thermal surface ionization mass sepctrometry equipped with multicollector has been used.

采用全蒸发技术、离子流强度积分的方式,用多接收器热表面电离质谱计测量铀同位素丰度。

The Air Kerma Rate of 125I sources is determined by the well-type ionization chamber.Thereafter the apparent activity of 125I sources is calculated and measured results are anylyzed.

采用井型电离室测定125I粒子源的空气比释动能率，进而估算出125I粒子源的表观活度（又称等效活度），并对结果进行了分析。