Direct determination of metals associated with airborne particulates using a graphite probe collection technique and graphite probe atomic absorption spectrometric analysis

A new analytical method has been developed for direct analysis of solid samples of airborne particulate matter by a graphite probe collection technique coupled with graphite furnace atomic absorption spectrometry. A porous graphite probe is used as a filter for air particles. The probe is then subje...

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Bibliographic Details
Published in:Spectrochimica acta. Part B: Atomic spectroscopy 1987, Vol.42 (11), p.1227-1233
Main Authors: Chakrabarti, C.L., Xiuren, He, Shaole, Wu, Schroeder, W.H.
Format: Article
Language:English
Subjects:
Analytical chemistry
Chemistry
Exact sciences and technology
Spectrometric and optical methods
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Summary:A new analytical method has been developed for direct analysis of solid samples of airborne particulate matter by a graphite probe collection technique coupled with graphite furnace atomic absorption spectrometry. A porous graphite probe is used as a filter for air particles. The probe is then subjected to atomization by being inserted into a graphite furnace which has been pre-heated to a constant atomization temperature. Some aspects of the method have been tested by recovery studies using NBS Urban Particulate Matter, SR M No. 1648, and found to give recoveries of 91–107% for Pb, Cd, Ni, Cu and Mn. By combining a highly efficient filtering medium with the extremely high relative sensitivity of solid sampling, this method has the potential of monitoring sources of air particulate emission with sufficient temporal and spatial resolution for unequivocal identification of the pollution source (at least on a local scale).
ISSN:0584-8547
1873-3565
DOI:10.1016/0584-8547(87)80171-4