Journal Published Online: 01 March 1984
Volume 12, Issue 2

Pilot Study for U.S. Geological Survey Standard Reference Water Samples for Pesticides



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.

Author Information

Friedman, LC
U.S. Geological Survey, Denver, CO
Fishman, MJ
U.S. Geological Survey, Denver, CO
Boyle, DK
U.S. Geological Survey, Denver, CO
Pages: 5
Price: $25.00
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Stock #: JTE10706J
ISSN: 0090-3973
DOI: 10.1520/JTE10706J