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Published online by Cambridge University Press: 14 March 2018
Artifacts in preparations are sample contaminants and may constitute a nuisance if they are not recognized, or an error if they are mistaken as part of the sample. Most artifacts have two characteristics: they are common substances and they are usually minor or trace components of the sample. Occasionally, artifacts are found as a major part of what is assumed to be the sample; for example, microscopical analysis of a plugged pneumatic valve showed cornstarch as the major component. It was soon discovered that the valve had been sent in a plastic bag dusted with cornstarch. Only one percent of the particles were actual sample.
Adapted from an article originally published in The Particle Analyst in 1968, available from McCrone Research Institute (1).
(1) McCrone Research institute, 2820 South Michigan Avenue, Chicago, IL 60616-3292. VOICE (312)842-7100; FAX (312) 842-1078; http://www.mcri.org.
(2) The Particle Atlas, Electronic Edition, is available on CD-ROM from McCrone Research Institute, from McCrone Accessoies and Components, 850 Pasquinelli Drive, Westmont, IL 60559, or from McCrone Scientific Ltd, 73 Maygrove Road, London NW6 2BP.
(3) An Atlas of Artifacts Encountered in the Preparation of Microscopic Tissue Sections. Samuel Wesley Thompson, D.V.M., M.S. and Lee G. Luna, D.Lit, H.T. (ASCP); Charles C. Thomas Publisher, Springfield, IL (1978), 190 pgs., illus. (500 photomicrographs).
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