The Mass Spectrometer 0.0 / 5 ? ChemistrySpectroscopyASOCR Created by: EveKidneyCreated on: 02-01-15 11:02 What happens in the sample inlet? Gases or Liquids are simply injected but solids are heated to vaporise them 1 of 10 What happens in the Ionisation Area? A heated filament produces high-energy electrons, these electrons bombard any atoms or molecules in the sample and knock electrons out. 2 of 10 What is formed in the Ionisation Area? Cations (positive ions) are formed 3 of 10 What happens in the Acceleration Area? An electric field is used to accelerate any ions so that they all have the same kinetic energy. 4 of 10 Why is there a vacuum in the Drift Region? So that ions do not collide with air molecules, which could change the direction of their flight path. 5 of 10 Do all Ions have the same kinetic energy? YES! 6 of 10 Do heavier Ions Move through the drift region more slowly or quicker than light ions? Heavier Ions move throughout the drift region more slowly than light ions. 7 of 10 Do light Ions reach the detector before heavier ones? YES! 8 of 10 What does the computer do with the information? Converts the information into a mass spectrum 9 of 10 What is detected after Fragmentation? Positive Ions 10 of 10
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