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Computer Code for Analysing X-Ray Fluorescence Spectra of Airborne Particulate Matter

Published online by Cambridge University Press:  06 March 2019

E.A. Drane ,
D.G. Rickel ,
W.J. Courtney  and
T.G. Dzubay
E.A. Drane
Affiliation:
Northrop Services Inc. -- Environmental Sciences, Research Triangle Park, N.C. 27711
D.G. Rickel
Affiliation:
Northrop Services Inc. -- Environmental Sciences, Research Triangle Park, N.C. 27711
W.J. Courtney
Affiliation:
Northrop Services Inc. -- Environmental Sciences, Research Triangle Park, N.C. 27711
T.G. Dzubay
Affiliation:
Northrop Services Inc. -- Environmental Sciences, Research Triangle Park, N.C. 27711
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During recent years energy dispersive x-ray fluorescence (EDXRF) has been used to measure the elemental content of atmospheric aerosols. The code described here is used to reduce EDXRF data and determine the elemental composition of samples collected on membrane filters. The program has been specifically written for EDXRF analysis of size-fractionated aerosols collected by a dichotomous sampler.

The x-ray fluorescence spectrometer used in our laboratory employs a pulsed-mode x-ray tube and a lithium-drifted silicon detector. Pulse-height spectra are produced for elements ranging in atomic number from Z = 13 to Z = 82 (corresponding to an energy range from 1.4 to 32.1 keV). Approximately uniform x-ray production is attained by producing independent spectra from three secondary targets (Ti, Mo, Sm).

Type
XRF Applications in Environmental Analysis
Information
Advances in X-Ray Analysis , Volume 23: Twenty-Eighth Annual Conference on Applications of X-ray Analysis, July 30 - August 3, 1979 , 1979 , pp. 149 - 156
Copyright
Copyright © International Centre for Diffraction Data 1979

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References

1. Loo, B.W., French, W.R., Gatti, R.C., Goulding, F.S., Jaklevic, J.M., Liacer, J., and Thompson, A.C., Large-Scale Measurement of Airborne Particulate Sulfur, Atmos. Environ. 12:759 (1978).Google Scholar
2. Dzubay, T.G., Stevens, R.K., and Richards, L.W., Composition of Aerosols over Los Angeles Freeways, Atmos. Environ. 12:653 (1978).Google Scholar
3. Stevens, R. K., Dzubay, T.G., Russwurm, G.M., and Rickel, D.G., Sampling and Analysis of Atmospheric Sulfates and Related Species, Atmos. Environ. 12:55 (1978).Google Scholar
4. Dzubay, T.G. and Stevens, R. K., Ambient Air Analysis with Dichotomous Sampler and X-ray Fluorescence Spectrometer, Environ. Sci. and Tech. 9:663 (1975).Google Scholar
5. Goulding, F.S. and Jaklevic, O.M., X-ray Fluorescence Spectrometer for Airborne Particulate Monitoring, U.S. Environmental Protection Agency, Office of Research and Development, Report EPA-R2-73-182, Research Triangle Park, N.C.Google Scholar
6. Jaklevic, J.M.. Landis, D.A., and Goulding, F.S., Energy Dispersive X-ray Fluorescence Spectrometry Using Pulsed X-ray Excitation, Adv. in X-ray Anal. 19:253 (1975).Google Scholar
7. Dzubay, T.G. and Rickel, D.G., X-ray Fluorescence Analysis of Filter-Collected Aerosol Particles, in: “Electron Microscopy and X-ray Applications,” Russell, P., ed., Ann Arbor Science Publishers, Ann Arbor (1977).Google Scholar
8. Giauque, R.D., Garrett, R.B., and Goda, L.Y., Calibration of Energy Dispersive X-ray Spectrometer for Analysis of Thin Environmental Samples, in: NX-ray Fluorescence Analysis of Environmental Samples,” Dzubay, T.G., ed., Ann Arbor Science Publishers, Inc., Ann Arbor (1977).Google Scholar
9. Anne, F., Wielopolski, L., and Gardner, R.P., The Linear Least-Squares Analysis of X-ray Fluorescence Spectra of Aerosol Samples using Pure Element Library Standards and Photo Excitation, in: “X-ray Fluorescence Analysis of Environmental Samples,” Dzubay, T.G., ed., Ann Arbor Science Publishers, Inc., Ann Arbor (1977).Google Scholar
10. Harrison, J.F. and Eldred, R.A., Automatic Data Acquisition and Reduction for Elemental Analysis of Aerosol Samples, Adv. in X-ray Anal. 17:560 (1974).Google Scholar
11. Strang, G.S., “Linear Algebra and Its Applications,” Academic Press, N.Y. (1976).Google Scholar
12. Henry Kauffman, private communication (1979) and Goult, R.J., et al., “Computational Methods in Linear Algebra,” Halsted Press, N.Y. (1974).Google Scholar
13. Dzubay, T.G. and Nelson, R.O., Self-Absorption Corrections for X-ray Fluorescence Analysis of Aerosols, Adv. in X-ray Anal. 18:619 (1975).Google Scholar
14. Gilfrich, J.V., Birks, L.S. and Criss, J.W., Corrections for Line Interferences in Wavelength-Dispersive X-ray Analysis, in: “X-ray Fluorescence Analysis of Environmental Samples,” Dzubay, T.G., ed., Ann Arbor Science Publishers, Inc., Ann Arbor (1977).Google Scholar
15. Bevington, P.R., “Data Reduction and Error Analysis for the Physical Sciences,” Mc-GrawHill, N.Y, (1969).Google Scholar
16. Currie, L.A., Detection and Quantitation in X-ray Fluorescence Spectrometry, in: “X-ray Fluroescence Analysis of Environmental Samples,” Dzubay, T.G., ed., Ann Arbor Science Publishers, Inc., Ann Arbor (1977).Google Scholar