inductively coupled plasma mass spectrometry inductively coupled plasma time-of-flight mass spectrometry inductively coupled plasma time of flight mass spectrometry ICP-TOFMS inductively coupled plasma time of flight mass spectroscopy CHMO:0000549 ICP-ToF-MS Mass spectrometry where the sample is ionised in a plasma (a partially ionised gas–-such as Ar–-containing free electrons) which has been generated by electromagnetic induction. The sample ions with different masses are then accelerated to the same (known) kinetic energy and the time taken for each ion to reach a detector at a known distance is measured. inductively coupled plasma time-of-flight mass spectroscopy ICP-TOF-MS