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. Analytes for which EPA has demonstrated the acceptability ofMethod 6020 in a multi-laboratory study on solid wastes are listed in Table of the METHOD for an element was based upon the multi-laboratoryperformance compared with that of either furnace atomic absorption spectroscopyor INDUCTIVELY COUPLED PLASMA -atomic emission spectroscopy.

equal to amu at 10% peak height is required. The system must have a mass range from at least 6 to 240 amu and a data system that allows corrections for isobaric interferences and the application of the internal standard technique. Use of a mass-flow controller for the nebulizer argon and a peristaltic pump for the sample solution are recommended.

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  Controller, Flows, Mass, Flow controllers

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