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Examination of Soil Contaminated by Coal-liquids by Size Exclusion Chromatography in 1-Methyl-2-pyrrolidinone Solution to Evaluate Interference from Humic and Fulvic Acids and Extracts from Peat by T.J. Morgan; A.A. Herod; S.A. Brain; F.M. Chambers; R. Kandiyoti is a Chemistry article available to read on EtoBox.

What is Examination of Soil Contaminated by Coal-liquids by Size Exclusion Chromatography in 1-Methyl-2-pyrrolidinone Solution to Evaluate Interference from Humic and Fulvic Acids and Extracts from Peat about?

Soil from a redundant coke oven site has been examined by extraction of soluble materials using 1-methyl-2-pyrrolidinone (NMP) followed by size exclusion chromatography (SEC) of the extracted material. The extracted material was found to closely resemble a high temperature coal tar pitch. Standard humic and fulvic acids were also examined since these materials are very soluble in NMP and would be extracted with pitch if present in the soil. Humic substances derived from peat samples and NMP-extracts of peats were also examined. The results show that the humic and fulvic substances were not extracted directly by NMP from peats. They were extracted using caustic soda solution and were different from the peat extracts in NMP. These results indicate that humic and fulvic acids were soluble in NMP in the protonated polyelectrolyte form but not in the original native polyelectrolyte form. The extraction of soil using NMP followed by SEC appears to be a promising method for identifying contamination by coal-based industries.

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Author

T.J. Morgan; A.A. Herod; S.A. Brain; F.M. Chambers; R. Kandiyoti

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 1873-3778)

Published

2005

Language

EN

Field

Chemistry (Physical Sciences)