Determination of resin and fatty acids in sediments near pulp mill locations.
A gas chromatographic method for the determination of resin and fatty acids in sediments is described. In this procedure, the sediment sample was air-dried and soxhlet-extracted with a mixture of acetone--methanol (88:12, v/v) in the presence of hydrochloric acid. The acids extracted were converted into their pentafluorobenzyl esters and were then cleaned up on a deactivated silica gel column. Final analysis was performed on either a DB-17 or a DB-5 capillary column with electron-capture detection. Quantitative recovery was obtained from fortified sediments for all acids except palustric, neoabietic and levopimaric acids. The detection limit of all acids in this method was 0.1 micrograms/g based on 1 g of sample. This procedure has been successfully applied to the monitoring of resin and fatty acids in sediment samples collected in the vicinity of several Canadian pulp mill locations.
Lee
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HB
Research and Applications Branch, National Water Research Institute, Canada Centre for Inland Waters, Burlington, Ontario.
Peart
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TE
D002170:Canada; D002849:Chromatography, Gas / Q000379:methods*; D005227:Fatty Acids / Q000032:analysis*; D005464:Fluorobenzenes; D007220:Industrial Waste / Q000032:analysis*; D010209:Paper; D012116:Resins, Plant / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014934:Wood
D005227:Fatty Acids; D005464:Fluorobenzenes; D007220:Industrial Waste; D012116:Resins, Plant; D014874:Water Pollutants, Chemical