Trace Soluble Organic Compounds in Potable Water Supplies.

摘要

An analytical method has been developed for concentrating,extracting,separating,and identifying natural organic compounds present in sub parts-per-million quantities in potable water. The developed technology consists of extracting trace organic compounds from water by means of macro-reticular resins,eluting them by simple and rapid solvent methods,separating the mixtures by gas chromotography,and identifying and quantifying the various pollutants by combination gas chromotography mass spectometry. The experimental XAD-2method was compared to the standard EPA approved solvent extraction method for determining chlorinated pesticides in water and showed it to be more effective,even at parts-per-trillion levels,in recovering dieldren from river water. More than 150compounds were identified (in about half of these cases even the specific isomer was identified) in the raw and/or treated water from fifteen Iowa and Nebraska communities.