laser ablation inductively coupled plasma mass spectrometry laser ablation inductively coupled plasma time-of-flight mass spectrometry LA-ICP-ToF-MS laser ablation inductively coupled plasma time of flight mass spectrometry Mass spectrometry where the sample is vaporised using a laser pulse then 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. laser ablation inductively coupled plasma time of flight mass spectroscopy laser ablation inductively coupled plasma time-of-flight mass spectroscopy CHMO:0000551 LA-ICP-TOF-MS