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单词 partition coefficient
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partition coefficient
partition coefficient n. [after French coefficient de partage (M. Berthelot & E. Jungfleisch 1872, in Ann. de chim. et de physique 26 398)] Physical Chemistry the ratio of the concentrations of a solute in either of two immiscible or slightly miscible liquids, or in two solids, when it is in equilibrium across the interface between them.
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partition coefficient1891
1891 Jrnl. Chem. Soc. 60 ii. 1148 (heading) Relation between affinity and partition coefficients in immiscible solvents.
1925 Jrnl. Iron & Steel Inst. 112 492 Variations in the concentration of cementite can be studied by means of the position of the Curie point, which allows of ascertaining variations in the partition coefficient of manganese between the carbide and the ferrite.
1990 Jrnl. Petrol. 31 773 One of the strongest arguments for a cumulate wehrlite source is the low concentration of Ni..in the most primitive phenocrysts in the akaramites. Given a partition coefficient of nine, this indicates a concentration in the liquid of 183 ppm.
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