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Clinical Chemistry 21: 595-602, 1975;
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Clinical Chemistry, Vol 21, 595-602, Copyright © 1975 by the American Association for Clinical Chemistry

Some Aspects of Specimen Collection and Stability in Trace Element Analysis of Body Fluids

Vir D. Anand 1, James M. White 1, and Hipolito V. Nino 1

1 Nutritional Biochemistry Section of the Bureau of Laboratories, Center for Disease Control, Public Health Service, U. S. Department of Health, Education, and Welfare, Atlanta, Ga. 30333.

the Center for Disease Control, Attn.: V. D. Anand, Bureau of Laboratories, Clinical Chemistry Division, Analytical Biochemistry Branch, Nutritional Biochemistry Section, Atlanta, Ga. 30333.

Analyses for trace elements in biological fluids are uniquely susceptible to extreme errors unless special precautions are taken during collection, storage, and analysis. The integrity of the specimen may be compromised before it is analyzed, by contamination during collection and processing or by attenuation of the analyte concentration during storage. If this happens, determined values are not valid even though the method of analysis is extremely sensitive and highly accurate. Obstacles to obtaining precise and accurate analytical data arising from these factors are discussed. We consider control procedures applicable at all stages for ascertaining the sources of error and eliminating them.


Key Words: biological fluids • containment • control materials and control procedures • contamination

Submitted on January 30, 1975




The following articles in journals at HighWire Press have cited this article:


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[Abstract] [Full Text] [PDF]


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Copyright © 1975 by the American Association for Clinical Chemistry.