Instrumental neutron activation analysis for studying size-fractionated aerosols

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Abstract

Instrumental neutron activation analysis (INAA) was utilized for studying aerosol samples collected into a coarse and a fine size fraction on Nuclepore polycarbonate membrane filters. As a result of the panoramic INAA, 49 elements were determined in an amount of about 200-400 μg of particulate matter by two irradiations and four γ-spectrometric measurements. The analytical calculations were performed by the absolute (k0) standardization method. The calibration procedures, application protocol and the data evaluation process are described and discussed. They make it possible now to analyze a considerable number of samples, with assuring the quality of the results. As a means of demonstrating the system's analytical capabilities, the concentration ranges, median or mean atmospheric concentrations and detection limits are presented for an extensive series of aerosol samples collected within the framework of an urban air pollution study in Budapest. For most elements, the precision of the analysis was found to be beyond the uncertainty represented by the sampling techniques and sample variability.

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Salma, I., & Zemplén-Papp, É. (1999). Instrumental neutron activation analysis for studying size-fractionated aerosols. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 435(3), 462–474. https://doi.org/10.1016/S0168-9002(99)00654-3

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