A database of partition constants for more than 300 compounds of industrial, environmental and biological interest in nineteen totally organic biphasic systems is reported. The biphasic systems consist of the polar organic solvents acetonitrile, methanol, N,N-dimethylformamide, dimethyl sulfoxide, formamide, propylene carbonate, ethylene glycol, ethanolamine and 3,3,3-trifluoroethanol with n-heptane or n-hexane (10 systems), isopentyl ether (5 systems), 1,2-dichloroethane (2 systems) and 1-octanol (2 systems) of suitable low mutual solubility. The solvation parameter model is used to identify compounds with extreme partition constant values and to develop a selection guide based on the cluster analysis of the model system constants to identify biphasic systems for liquid–liquid extraction.

据报道，在十九个完全有机的双相系统中，有300多种工业，环境和生物学感兴趣的化合物的分配常数数据库。双相系统由极性有机溶剂乙腈，甲醇，N，N-二甲基甲酰胺，二甲亚砜，甲酰胺，碳酸亚丙酯，乙二醇，乙醇胺和3,3,3-三氟乙醇与正庚烷或n组成-互溶性低的正己烷（10个系统），异戊醚（5个系统），1,2-二氯乙烷（2个系统）和1-辛醇（2个系统）。溶剂化参数模型用于识别具有极高分配常数的化合物，并基于模型系统常数的聚类分析来制定选择指南，以识别用于液-液萃取的双相系统。