New perspectives in laser analytics: Resonance-enhanced multiphoton ionization in a Paul ion trap combined with a time-of-flight mass spectrometer

A new laser analytical device has been developed that is based on resonance‐enhanced multiphoton ionization in the very center of a radio‐frequency quadrupole ion trap. Applications in speciation anlaysis of biological and enviromental samples and in materials science will all benefit from laser‐optical selectivity in the resonance excitation process, combined with mass‐spectropic sensivity which is further enhanced by the ion accumulation and storage capability.