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Liquid/Air Partition Coefficients of Six Commonly Used Glycol Ethers
G. Johanson and B. Dynésius
British Journal of Industrial Medicine
Vol. 45, No. 8 (Aug., 1988), pp. 561-564
Published by: BMJ
Stable URL: http://www.jstor.org/stable/27726646
Page Count: 4
You can always find the topics here!Topics: Ethers, Glycols, Blood, Solvents, Coefficients, Acetates, Solubility, Olive oil, Chemical hazards, Pharmacokinetics
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The toxicokinetics of organic solvents depend largely on their tissue solubilities. Liquid/air partition coefficients (pcs) of six commonly used glycol ethers (2-methoxyethanol (ME), 2-ethoxyethanol (EE), 2-isopropoxyethanol (PE), 2-butoxyethanol (BE), 2-ethoxyethyl acetate (EEA), and 1-methoxy-2-propanol (MP)) were determined in vitro using a head space technique. The liquids used were physiological saline, human blood, and olive oil. The pcs were calculated after gas chromatographic quantification of the glycol ethers in the air phase. The water-air pcs ranged from 3800 to 36 000, increasing in the order EEA, BE, MP, PE, EE, ME. These values corresponded closely to the blood/air pcs with one exception—EEA could not be detected in the air phase after addition to blood. The oil/air pcs ranged from 530 to 5400, increasing in the order ME, MP, EE, PE, EEA, BE.
British Journal of Industrial Medicine © 1988 BMJ