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Problems and Artifacts on Extraction Replicas of Membrane Filters

Published online by Cambridge University Press:  16 February 2011

S. Turner ,
E. B. Steel  and
E. S. Landis
S. Turner
Affiliation:
Center for Analytical Chemistry, National Institute of Standards and Technology, Gaithersburg, MD 20899
E. B. Steel
Affiliation:
Center for Analytical Chemistry, National Institute of Standards and Technology, Gaithersburg, MD 20899
E. S. Landis
Affiliation:
Center for Analytical Chemistry, National Institute of Standards and Technology, Gaithersburg, MD 20899
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Abstract

For studies of particles suspended in air or water, material is commonly deposited onto membrane filters. Submicrometer particles collected in or on the surface of the filters can be prepared for analysis by TEM by extraction replica methods. To identify the problems and artifacts generated during the preparation process, evaluations were made of replicas prepared internally at NIST and prepared by laboratories involved in the analysis of air-collected asbestos. Problems or artifacts that could affect the counting and analysis of asbestos particles were identified and characterized. Results of evaluations of replicas prepared by eighteen laboratories in an interlaboratory study are summarized.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 199: Symposium W – Specimen Preparation for Transmission Electron Microscopy of Materials II , 1990 , 157
Copyright
Copyright © Materials Research Society 1990

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References

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