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    An Examination of an XRF Method Used for the Determination of Lead in Urban Soil and Dust Samples

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    X-ray fluorescence analysis (XRF), atomic absorption spectroscopy (AAS), and inductively coupled plasma atomic emission spectroscopy (ICP) were used for the measurement of lead in samples for the Urban Soil Lead Abatement Demonstration Project (USLADP). This paper focuses on the examination of the results from multi-sample XRF lead determinations performed on soils and dusts for that project. The purpose is to establish some accuracy and precision baselines for the application of XRF analysis to “real world” samples using a prescribed protocol. The contributions to variance were identified and measured. Preparation of soil and dust samples is a very important parameter. Variance for the XRF instrument is a minor contribution compared to variance attributable to sample differences.


    X-ray Fluorescence (XRF), Energy-dispersive X-ray Fluorescence (EDXRF), lead, soil, dust, variance, quality control, reference materials

    Author Information:

    Vincent, HA
    Chemist, EMSL-LV, USEPA, Las Vegas, NV

    Boyer, DM
    Scientist, Lockheed Environmental Systems and Technologies, Las Vegas, NV

    Committee/Subcommittee: D18.99

    DOI: 10.1520/STP12977S