Detection and measurement of organic lampricide residues
Technical Report
9
Out-of-print
By: Stacy L. Daniels, Lloyd L. Kempe, Thomas J. Billy, and Alfred M. Beeton
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Abstract
The selective lampricide, 3-trifluoromethyl-4-nitrophenol (TFM), and its synergist, 5,2'-dichloro-4'-nitrosalicylanilide (DCN), are separable from natural waters by anion exchange. The adsorbed compounds can then be recovered from the resin as concentrates by elution with selective solvent mixtures. Measurements of the amounts of lampricides in the final concentrates can be made colorimetrically at 395 mI? for TFM and at 530 mI? for the safranin complex of DCN. TFM has also been separated for quantitative determination from homogenates of whole fish. The fish is first macerated in a blender and then hydrolyzed in hot, 3 N hydrochloric acid. The amount of background color, due to certain components of the fish in the hydrolysate, is reduced by one or a combination of three methods: (1) a series of three extractions with ether, methylene chloride, and benzene; (2) cation exchange followed by methylene chloride extraction; or (3) ether extraction followed by anion exchange and subsequent desorption with amyl acetate-acetic acid.
| Publication type | Report |
|---|---|
| Publication Subtype | Organization Series |
| Title | Detection and measurement of organic lampricide residues |
| Series title | Technical Report |
| Series number | 9 |
| Year Published | 1965 |
| Language | English |
| Publisher | Great Lakes Fishery Commission |
| Contributing office(s) | Great Lakes Science Center |
| Description | 18 p. |
| First page | 0 |
| Last page | 18 |
| Google Analytic Metrics | Metrics page |