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Zur Beurteilung von Wässern werden gegenwärtig Summenparameter, Gruppenparameter und einzelsubstanzanalytische Daten herangezogen. Wegen der wachsenden Bedeutung spezifischer Substanzgruppen ist der Entwicklung von Gruppenparametern in den letzten Jahren besondere Aufmerksamkeit gewidmet worden....
The different phenoloxidase contents of shoots of various land plants (sunflower, corn, wheat, potato) as well as of various algal species were used for investigating the biochemical conversion and accumulation of phenol, p‐and o‐cresol, guaiacol, pyrocatechol and hydroquinone. The methods...
The kinetics of oxidation of carcinogenic benzo(a)pyrene (0.1 nM solution in phosphate buffer) catalyzed by enzyme protein of soil and water plants (potato tubers and alga Nitella sp.) has been studied. The benzo(a)pyrene oxidation rate is determined by the phenoloxidase activity of the enzyme...
According to the results from investigations with different anion exchangers and synthetically obtained thiopolymers as thiopolystyrene and thiopolyvinylether, phenols and their oxidation products can be removed with different efficiencies. The individual methods of treatment and analysis are...
Puntius sophore (HAMILTON) were exposed to several concentrations of mercury up to 10 d under static bioassay conditions. Abnormal behaviour in fish were increase in swimming activity, absence of shoaling behaviour, surfacing, loss of equilibrium and death. The body and gills of dead and living...
A limnological study was carried out in the subtropical Lake Sattal (Kumaun Himalaya) during 1979. The lake was thermally stratified during warm months and a low percentage saturation of dissolved oxygen occurred in the bottom waters. Two maxima of phytoplankton occurred in the Eastern basin in...
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