Doemer-Hoskins equation

In a static system, the trace elements are either gradually enriched or gradually depleted in the liquid depending on whether the distribution coefficients are less than or greater than unity. The concentrations of trace elements in the growing crystal are zoned. The relations between the initial and fmal concentrations are described by the Doemer-Hoskins equation (Kinsman and Holland, 1969)... 

The flow-through system need provide only a single sampling point for liquid which is regarded as being in a steady state relation with the crystallizing solid. Another version of the Doemer-Hoskins equation provides a relationship between the concentrations of the trace elements in the flowing liquid and the crystalline solid which has just been deposited from it. 

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