... toxic when dissolved in culture water. The combination of selected fractionation followed by Daphnia bioassays of each fraction determined the characteristics of the most toxic fraction to be steam volatile, base-neutral, and aromatic. Eleven compounds (polycyclic aromatic hydrocarbons) with a total...

... to standards. hazardous solid waste volatile organic analysis gas chromatography gas chromatography/mass spectrometry contaminated soils sludge analysis organics analysis surrogate analysis pollution potential determination solvents aromatic hydrocarbons R. B. Pojasek^ and M. F. Scotf...

... for qualitative and quantitative determination. volatile organics organohalides aromatic hydrocarbons purge and trap headspace analysis dynamic headspace drinking water wastewater gas chromatography GC-MS T. A. Bellar^ and J. J. Lichtenberg^ Semiautomated Headspace Analysis of Drinking Waters...

... Marine and fresh water sediments exhibit a wide variety of polycyclic aromatic hydrocarbons. These range from the two-ringed biphenyl and naphthalene species to the seven-ringed coronene member, and include a variety of intermediate aromatics exhibiting isomeric differences as well as alkylated...