It is a histogram usually acquired using an instrument called a mass spectrometer. Paul traps are commonly used as components of a mass spectrometer. These become secondary ions, which are then detected after transfer through the mass spectrometer. The final element of the mass spectrometer is the detector. SiFNe can be made from neon and using mass spectrometer technology. In these techniques, ions form in an ion source outside the mass spectrometer. It can be produced by a mass spectrometer instrument. The desorbed ions are then able to pass into the mass spectrometer for analysis. Lawrence began converting his old 37-inch cyclotron into a giant mass spectrometer. The inlet tube to the mass spectrometer becomes the ion source. This will produce a set of peptides that can be analysed using a mass spectrometer. For example, a TGA is sometimes attached in line with a mass spectrometer. Mass spectrometer techniques can also be used. The resulting ions are then analyzed by the mass spectrometer. In a triple quadrupole mass spectrometer there are three quadrupoles.