Status report : Preparing an ambient aerosol filter reference material for elemental analysis
For the elemental analysis of aerosol filter samples by X-ray techniques there is a lack of adequate reference materials (RMs). No genuine aerosol matrix is available which has been collected on membrane filters from ambient aerosol and can be distributed in the same physical form. It is possible to collect high-volume ambient aerosol samples, with a uniformity of 5 % to 15 %, in the elemental deposit ranges of 10 ng/cm2 to 1 micro-g/cm2 within probed spots of only 4 mm diameter on suitable filter materials. An aerosol sampling campaign is being organised, aiming at the collection of large enough filter batches of aerosols of different origin, suitable for characterisation by different analytical methods and compatible with X-ray fluorescence analysis (XRF). To a large extent, the production control - especially for the homogeneity of the elemental mass deposits - will be performed by particle-induced X-ray emission (PIXE) analysis on residual material without consuming any part of the candidate RM stock.
Bibliographic Reference: Paper presented: BERM-5, Aachen (DE), May 11-14, 1992
Availability: Available from (1) as Paper EN 36691 ORA
Record Number: 199310567 / Last updated on: 1994-11-29
Original language: en
Available languages: en