| 摘要 |
PURPOSE:To reduce the analysis time when plural analysis methods are applied simultaneously, by making it possible to carry out plural types of mass analysis methods continuously. CONSTITUTION:At first, the density of a magnetic field B is set at a standard mass M by a standard ion accelerating voltage. This density of the magnetic field is taken as B0. Then a mass analysis order is input to the CPU to carry out MIKES methods, taking detected fragment ion masses M1 and M2 as parent ions, and to carry out MIKES-MF method, taking daughter ions Md1 and Md2. After that, the MF mode is selected and the analysis is started. Then the ion accelerating voltage is converted to set to M1 and M2 while the density of magnetic field B0 is fixed. At the same time, the voltage of the energy analysis electric field is converted synchronously to the ion accelerating voltage. In such a way, when plural analysis methods are applied at a time, the analysis time can be reduced. |
