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Which type of mass spectrometer measures the time it takes for ions to travel a fixed distance?
- A Quadrupole mass spectrometer
- B Time-of-flight mass spectrometer
- C Ion trap mass spectrometer
- D Magnetic sector mass spectrometer
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A Time-of-flight mass spectrometer measures the time it takes for ions to travel a fixed distance. In this type of mass spectrometer, ions are accelerated by an electric field and then released into a flight tube. The time it takes for ions to travel from the ion source to the detector is directly proportional to their mass-to-charge ratio (m/z). Lighter ions reach the detector faster than heavier ions. By measuring the time-of-flight of ions, the mass-to-charge ratio of ions can be determined, allowing for the identification of compounds present in the sample.
