Journal
CHEMOSPHERE
Volume 85, Issue 6, Pages 990-994Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2011.06.088
Keywords
Group contribution method; QSAR; MATLAB; Ecotoxicity; Ionic liquids; Daphnia magna
Categories
Funding
- PETRONAS Ionic Liquid Center (PILC)
- Chemical Engineering Department, Universiti Teknologi PETRONAS
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A new mathematical model has been developed that expresses the toxicities (EC(50) values) of a wide variety of ionic liquids (ILs) towards the freshwater flea Daphnia magna by means of a quantitative structure-activity relationship (QSAR). The data were analyzed using summed contributions from the cations, their alkyl substituents and anions. The model employed multiple linear regression analysis with polynomial model using the MATLAB software. The model predicted IL toxicities with R(2) = 0.974 and standard error of estimate of 0.028. This model affords a practical, cost-effective and convenient alternative to experimental ecotoxicological assessment of many ILs. (C) 2011 Elsevier Ltd. All rights reserved.
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