TOF

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  • Time of flight
    • Electrospray ionisation- high voltage produces highly charged ions. Evaporates to gaseous ion
      • Acceleration-electric field is applied to give ions the same kinetic energy
        • Ion drift- ions enter the flight tube, smaller ions travel faster
          • Ion detection - positively charged ions arrive at the detector and generate a current
            • Data analysis   -mass spectrum obtained is a plot of relative abundance against m/z ratio

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