Inductively Coupled Plasma Mass Spectrometry (ICP-MS) is a very powerful tool for trace (ppb-ppm) and ultra-trace (ppq-ppb) elemental analysis. ICP-MS is rapidly becoming the technique of choice in many analytical laboratories for the accurate and precise measurements needed for today’s demanding applications. In ICP-MS, a plasma or gas consisting of ions, electrons and neutral particles, is formed from argon gas. The plasma is used to atomize and ionize the elements in a sample. The resulting ions are then passed through a series of apertures (cones) into the high vacuum mass analyzer. The isotopes of the elements are identified by thier mass-to-charge ratio (m/e) and the intensity of a specific peak in the mass spectrum is proportional to the amount of that isotope (element) in the original sample.
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