Time of Flight Mass Spectrometry (AQA A-Level Chemistry): Flashcards

Identify elements, determine relative molecular masses & isotopic abundance

Sample in solvent, high voltage needle, particles gain $H^+$

High-energy electrons knock off electrons, forming +1 ions

Same kinetic energy given, but lighter ions move faster than heavier ions

Lighter ions

Ions gaining electrons produces current

x-axis: $m/z$ values, y-axis: relative abundance

Tallest peak, most abundant ion

Peak corresponding to molecular mass of compound

Presence of $^{13}C$ atom