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When the extruder reaches a steady state with regard to the flow rate, pressure and temperature conditions, a sample of the tracer (consisting in a quantity of 300 mg and 1 g of powder, respectively, for the free anthracene
and the grafted anthracene
polystyrene) was added manually into the feed stream.
25 g of pure anthracene
was introduced as a pulse through the hopper placed on feeder 1, and specimens were taken at constant intervals from the exit die.
On the basis of those results, the masterbatch containing 5% anthracene
was chosen for subsequent RTD experiments.
PAH Abbreviation RPF (a) Twelve priority pollutant PAHs Anthracene
ANT 0 Benz[a]anthracene
was used as UV-fluorescence tracer, the hydroxyl group polar function giving a better solubility of the tracer in DOP, EG, and EVA copolymers.
Some pyrolytic products containing PAHs in appreciable concentrations are coal tars, coal tar creosote, anthracene
soils, coal tar pitch, used crankcase lubricants, coal gasification oils and tars, automotive tires, certain asphalts, and carbon black.
Kopelman and his colleagues at Hebrew University in Jerusalem grow tiny crystals of anthracene
at the tips of metal-coated glass micropipettes.
SYNTHESES OF ELECTROACTIVE LAYERS BASED ON FUNCTIONALIZED ANTHRACENE
FOR ELECTROCHROMIC APPLICATIONS.
13] used PVC grafted with anthracene
and phenyl as off-line UV tracers to assess the RTD curves of PVC chains during a twin-screw extrusion of rigid and plasticized PVC.
According to the Florida Department of Environmental Regulation, over fifty years after operations ceased, the Pit still has "elevated levels of anthracene
, fluroanthene, pyrene and benzene.
was used as fluorescence tracer and was preliminarily dispersed in the minor component.