A novel setup is presented that is suitable to investigate the change of the properties of a single trapped nanoparticle by charging it with monochromatic synchrotron radiation. The particles are stored for long time periods that reach up to days without any contact to a substrate in the center of a three dimensional electrodynamic quadrupole trap. The accurate Q/M value is derived from the oscillatory motion of the particle in the trap recorded via scattering of visible light.

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