Liquid Sample Introduction in Icp Spectrometry: A Practical Guide - Paperbackby Jos Luis Todoli (Author), Jean Michel Mermet (Author) Inductively coupled plasma atomic or mass spectrometry is one of the most common techniques for elemental analysis. Samples to be analyzed are usually in the form of solutions and need to be introduced into the plasma by means of a sample introduction system, so as to obtain a mist of very fine droplets. Because the sample introduction system can be a limiting factor in the analytical