ISSN: 0090-3973
Page Count: 5

Pilot Study for U.S. Geological Survey Standard Reference Water Samples for Pesticides
Friedman, LC
Hydrologist, chemist, and chemist, U.S. Geological Survey, CO

Fishman, MJ

Boyle, DK

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.

Keywords:
water quality, inorganic compounds, pesticides, organic compounds, insecticides

Paper ID: JTE10706J
DOI: 10.1520/JTE10706J
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