ISSN:
1588-2780
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Energy, Environment Protection, Nuclear Power Engineering
Notes:
Abstract About 250 sets of polycarbonate (Nuclepore, Costar) membrane filters loaded with two urban air particulate matter (APM) obtained in Vienna and Prague were prepared by filtration of a watter suspension of the above APM materials. The homogeneity of both bulk APM materials and the loaded filters was tested by determining a number of elements by instrumental neutron activation analysis (INAA), proton induced X-ray emission (PIXE) and micro-X-ray fluorescence (μ-XRF). Relative standard deviations due to inhomogeneity (s inh ) were below 3% for many elements in the bulk APM materials. In the loaded filters, the s inh values increased significantly. Nevertheless, for up to 20 elements important in air pollution studies the s inh values were below 15%, allowing target values with a reasonably low uncertainties (up to 20%) to be derived for the future use of the filters in proficiency testing of laboratories involved in air pollution monitoring.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1006724417413
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