[Absorption of selected plant protective agents on different tubing materials].
A total of 10 tubing materials (butyl-, rubber-, latex-, polyethylene-, Perbunan-, PVC-, silicone-, Teflon-, Tygon- and Vitontubes), which are sold for laboratory use, was tested for their sorption capacity. Different concentrations (0.03-8 micrograms active ingredients/ml H2O) of pesticides, lindane and atrazine, were used in three experiments to investigate the sorption on inner and/or outer surface of tubes and with continuous flow rate of pesticide solutions. In general the sorption of lindane was greater than atrazine. The extent of sorption was dependent on the concentration of pesticides. Teflon showed no sorption in any of the experiments, the same as quartz glass, which was used as a standard. Depending on the sorption behaviour, the use of some tubing materials (e.g. Tygon, Perbunan or silicone tubes) is not advisable for certain experiments.
Pestemer
W
W
Institut für Unkrautforschung der Biologischen Bundesanstalt für Land- und Forstwirtschaft, Braunschweig.
Nordmeyer
H
H
D000042:Absorption; D001280:Atrazine; D001556:Hexachlorocyclohexane; D007840:Latex; D011095:Polyethylenes; D011138:Polytetrafluoroethylene; D011143:Polyvinyl Chloride; D011791:Quartz; D012408:Rubber; D012828:Silicones
D007840:Latex; D011095:Polyethylenes; D012828:Silicones; D011791:Quartz; D001556:Hexachlorocyclohexane; D011138:Polytetrafluoroethylene; D011143:Polyvinyl Chloride; D012408:Rubber; D001280:Atrazine
Sorption von ausgewählten Pflanzenschutzmitteln an unterschiedlichen Schlauchmaterialien.