Years before they greeted Columbus, the Taino taÃ­no explored and settled The. (Caribbean Guilbert). Gates their homeland is rich with cave, drawings which testify to the hallucinogens that fueled otherworldly, visions as shown here in a leader sniffs cohoba. powder
To Control Ionization. 1  Ionization Voltage Typically, 70eV electrons from the filament are used for EI. 2  Emission Current The number of ions produced in unit time is proportional to the current of emitted electrons, i.e., emission current. 3  Ion Source Temperature The ion source is usually used at about 200 oC.
Electron ionization. Electron ionization (EI, formerly known as electron impact ionization and electron bombardment ionization) is an ionization method in which energetic electrons interact with solid or gas phase atoms or molecules to produce ions. EI was one of the first ionization techniques developed for mass spectrometry.