Transcription of METHOD 6020 INDUCTIVELY COUPLED PLASMA - MASS …
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METHOD 6020 INDUCTIVELY COUPLED PLASMA - MASS …
CD-ROM6020-1 Revision 0 September 1994 METHOD 6020 INDUCTIVELY COUPLED PLASMA - mass SPECTROMETRY SCOPE AND APPLICATION INDUCTIVELY COUPLED PLASMA - mass spectrometry (ICP-MS) is applicableto the determination of sub- g/L concentrations of a large number of elements inwater samples and in waste extracts or digests [1,2]. When dissolvedconstituents are required, samples must be filtered and acid-preserved prior toanalysis. No digestion is required prior to analysis for dissolved elements inwater samples. Acid digestion prior to filtration and analysis is required forgroundwater, aqueous samples, industrial wastes, soils, sludges, sediments, andother solid wastes for which total (acid-leachable) elements are ICP-MS has been applied to the determination of over 60 elements invarious matrices.
isotope abundances from the literature [5], the most precise coefficients for an instrument can be determined from the ratio of the net isotope signals observed for a standard solution at a concentration providing suitable (<1 percent) counting statistics. Because the 35Cl natural abundance of 75.77 percent is 3.1 3
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