Partition coefficients of low-molecular-weight volatile chemicals in various liquids and tissues

Gargas, ML; Burgess, RJ; Voisard, DE; Cason, GH; Andersen, ME

HERO ID

63084

Reference Type

Journal Article

Year

1989

Language

English

PMID

2929023

HERO ID 63084
In Press No
Year 1989
Title Partition coefficients of low-molecular-weight volatile chemicals in various liquids and tissues
Authors Gargas, ML; Burgess, RJ; Voisard, DE; Cason, GH; Andersen, ME
Journal Toxicology and Applied Pharmacology
Volume 98
Issue 1
Page Numbers 87-99
Abstract Partition coefficients are required for developing physiologically based pharmacokinetic models used to assess the uptake, distribution, tabolism, and elimination of volatile chemicals in mammals. A gas-phase vial equilibration technique is presented for determining the liquid:air and tissue:air partition coefficients for low-molecular-weight volatile chemicals. This technique was developed from two previously described medium:air methods, relied solely on measurement of chemical concentration in the gas phase, and, compared to earlier work, extends the range of chemicals and tissues examined. Partition coefficients were determined with 0.9% saline, olive oil, and blood, liver, muscle, and fat tissues from rats for 55 compounds. Human blood:air coefficients were determined for 36 compounds and several blood:air values were also determined in the mouse and for one compound in the hamster. An approach is described for predicting the tissue solubilities of untested compounds based on oil:air and saline:air coefficients using regression analyses. A similar approach is used to model fat:air coefficients in terms of oil:air values and to model human blood: air coefficients in terms of rat blood:air coefficients.
Doi 10.1016/0041-008x(89)90137-3
Pmid 2929023
Wosid WOS:A1989T940500010
Is Certified Translation No
Dupe Override No
Is Public Yes
Language Text English
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