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  • Title: Inductively coupled plasma mass spectrometry for trace element analysis in the clinical laboratory.
    Author: Nuttall KL, Gordon WH, Ash KO.
    Journal: Ann Clin Lab Sci; 1995; 25(3):264-71. PubMed ID: 7605109.
    Abstract:
    Inductively coupled plasma mass spectrometry (ICP-MS) is a relatively new technique for trace element analysis. The basic operating principles of ICP-MS are described and our experience with this technique in a clinical setting is discussed for the analysis of serum, whole blood, and urine. Advantages to ICP-MS include the favorable detection limits (0.01 to 0.1 micrograms/L for many elements), simple specimen preparation, high throughput (about 40 specimens per hour), and the ability to measure more than one element simultaneously. A major disadvantage is the high capital cost of the instrumentation. Heavier elements, such as lead, are well-suited for ICP-MS analysis, whereas lighter elements are prone to more interferences. Lighter elements which are not amenable to assay by ICP-MS include chromium and iron. The ability to measure isotopes is a major advantage for mass spectrometry methods and has the potential to expand the usefulness of trace element analysis.
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