USGS · 70013898
Pilot study for U.S. Geological Survey Standard Reference Water Samples for pesticides
Abstract
The U.S. Geological Survey has been preparing and maintaining a library of standard reference water samples for inorganic constituents for 19 years. Recently, a pilot study was conducted to see if the reference-sample program could be expanded to include pesticides and other organic materials. Two samples containing organochlorine and organophosphorus insecticides, and chlorophenoxy acid herbicides were distributed to a number of laboratories in the United States. One of the samples also contained polychlorinated biphenyls. Interlaboratory data obtained from these round robin studies are presented with intralaboratory information on long-term stability.
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L.C. Friedman, M. J. Fishman, D.K. Boyle. 1984. Pilot study for U.S. Geological Survey Standard Reference Water Samples for pesticides. https://doi.org/10.1520/jte10706j
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