ISSN:
0049-8246
Keywords:
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Physics
Notes:
Results are presented for an intercomparison of two different techniques to produce standard filter materials for the energy-dispersive x-ray analysis of aerosol filter samples. In one, multi-element standard solutions were dropped on to Munktell quartz-fibre filters and air dried. The other technique utilized an aerosol generator. The dried aerosol was deposited on the filter surface. Extensive calibration procedures were performed with both types of standards. The data were applied to the analysis of urban aerosol filter samples. The results indicated that the aerosol technique provides good accuracy even for elements of atomic numbers below 30. The dropping technique is not applicable for fibre filters and the calibration of light elements (atomic number 〈 30) and achieves lower accuracy. Therefore, the aerosol technique should be applied generally to the preparation of standard filters. This method provides small particles and homogeneous coatings of the multi-element standards.
Additional Material:
13 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/xrs.1300240511
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