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    STP1291

    Ultra-Low Level (pg/L) Actinide Determinations and Superior Isotope Ratio Precisions by Quadrupole ICP-MS

    Published: 01 January 1995


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    Abstract

    A very high sensitivity, quadrupole-based inductively coupled plasma mass spectrometer (ICP-MS) has been developed and employed to measure very low concentrations (pg/L) of various actinides in solution. The detection capabilities of the instrument are shown using a variety of sample introduction methods, including simple direct sample nebulization, higher efficiency sample nebulization, and column preconcentration. This allowed three sigma detection limits in the range from 33 to 0.07 pg/L to be achieved, using short integration times, for a number of actinides. In addition, the improved sensitivity allowed isotope ratio measurements to be undertaken with good precision, (0.05 to 0.2%) at low concentrations (0.5 to 5 μg/L), without requiring long acquisition times. The results of isotope ratio measurements on silver, lead, and NIST natural lead standard SRM981 will be reported.

    Keywords:

    inductively coupled plasma mass spectrometry, actinide analysis, technetium determination, isotope ratio measurements, lead isotope ratio measurements


    Author Information:

    Liezers, M
    Senior development scientist, senior product manager, application specialist, and application chemist, Fisons Instruments Elemental Analysis, Winsford, Cheshire

    Tye, CT
    Senior development scientist, senior product manager, application specialist, and application chemist, Fisons Instruments Elemental Analysis, Winsford, Cheshire

    Mennie, D
    Senior development scientist, senior product manager, application specialist, and application chemist, Fisons Instruments Elemental Analysis, Winsford, Cheshire

    Koller, D
    Senior development scientist, senior product manager, application specialist, and application chemist, Fisons Instruments Elemental Analysis, Winsford, Cheshire


    Committee/Subcommittee: C26.05

    DOI: 10.1520/STP15980S