Preservation of organophosphorous pesticides in water samples |
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Authors: | Sidney Bourne |
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Institution: | 1. Central Regional Laboratory, Region V , U.S. Environmental Protection Agency , 1819 W. Pershing Road, Chicago, IL, 60609;2. Argonne National Laboratory , Argonne, IL, 60439 |
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Abstract: | Abstract Four techniques were studied for capacity to preserve sixteen organophosphorous pesticides in distilled water and in creek water. A technique using chloroform effectively preserved all sixteen pesticides for the three weeks of the study and refrigeration was effective for fourteen of the pesticides, but buffers of pH A and pH 7 appeared undependable as preservatives. |
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Keywords: | Preservation Pesticides Organophosphorus |
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