ionization

Objective To evaluate hemostasia effect of the combination of non-ionization soluble styptic gauze and venom haemocoagulase in operation bleeding and wound errhysis.

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

A high performance liquid chromatography-electrospray ionization mass spectrometry(LC-ESI/MS) was developed to screen and determine trenbolone,tetrahydrogestrinone and gestrinone in human urine.

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

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.

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.

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

The triphenylamine azo compounds were successfully characterized by matrix-assisted laser desorption-ionization time of flight mass spectrometry(MALDI-TOF MS).

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