A new method called pure sample standardization was established based on the theory that motomorillonite contents have a positive correlation with cation exchange capability to a specific bentonite ore.

Development of the collections and the blanket making;

Due to the good permeability,fast mass transfer property,high stability,and the ease of modification,monolithic materials have been widely used in microcolumn separation systems,not only as the stationary phase for capillary electrochromatography(CEC) and microcolumn high performance liquid chromatography(μ-HPLC),but also as the matrix for sample enrichment and enzyme reactor.

A 1-D mathematical model,including the electrical potential distribution equation,the buffer concentration equation,as well as the sample electromigration and diffusion equation,is developed through proper simplifications and assumptions to study the sample stacking process in capillary electrophoresis.