log Koc mean values from batch equilibrium

Batch Equilibrium Method

ADSORPTION/DESORPTION USING A BATCH EQUILIBRIUM METHOD

The shake flask method described is based on the OECD Test Guideline .

The HPLC method is less sensitive to the presence of impurities in the test compound than is the shake-flask method.

This test method includes two separate procedures: the shake flask method and high performance liquid chromatography (HPLC).

The experimental difficulties associated with the formation of micro-droplets during the shake-flask experiment can be reduced in the slow-stirring experiment proposed here.

The shake-flask method applies only to essentially pure substances soluble in water and n-octanol.

The shake-flask method is prone to artifacts due to transfer of octanol micro-droplets into the aqueous phase.

for deciding which of the experimental methods is appropriate (shake-flask range: log Pow: - 2 to 4, HPLC range: log Pow: 0 to 6

Chemical products for industrial use — Determination of partition coefficient — Flask shaking method.

Chemical products for industrial use — Determination of partition coefficient — Flask shaking method.

For log P values less than 4, the calibration can be based on data obtained by the shake-flask method.

The Nernst Partition Law applies only at constant temperature, pressure and pH for dilute solutions.

for selecting the appropriate test conditions (e.g. reference substances for HPLC procedures, volume ratio n-octanol/water for shake flask method