Journal
CHEMOSPHERE
Volume 203, Issue -, Pages 381-386Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2018.03.178
Keywords
Sensitivity test; 50% lethal concentration (LC50); Residue determination; Organization for Economic Cooperation and Development (OECD); High performance liquid chromatography (HPLC)
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Funding
- National Key R&D Program of China [2017YFD0200307, 2016YFD0800202]
- National Natural Science Foundation of China [41771282, 21277083, 41701279]
- Natural Science Foundation of Shandong Province, China [ZR2017MD005, ZR2017BB075]
- Special Funds of Taishan Scholar of Shandong Province, China
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Ionic liquids (ILs) were considered new green solvents in consideration of the low volatility. Since their inception, ionic liquids (ILs) have attracted widespread attention. However, Es were not safe enough as what we thought. The toxicity of 1-ethyl-3-methylimidazolium ILs ([C(2)mim]R, R= Cl-, Br-, BF4-) and 1-alkyl-3-methylimidazolium bromine ([C(n)mim]Br, n = 2, 4, 8, 10, 12) using 50% lethal concentration (LC50) were studied in the present study to enrich the toxicological information. Besides the LC50 values, the sensitivity test using potassium dichromate (K2Cr2O7) and residue determinations of the tested ILs were also performed. The sensitivity and dynamic changes of IL doses both catered for the stipulation that declared the accuracy of the toxicological test results, which illustrated that the alkyl-chain lengths contributed more than anions to the toxicity of the ILs described above to zebrafish. Additionally, the present study also enriched the toxicological information on imidazolium-based ILs to aquatic systems. (C) 2018 Elsevier Ltd. All rights reserved.
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