MICRO ELECTROCHROMATOGRAPHY METHOD FOR COMBINED ION MEMBRANES

摘要

The invention relates to a micro electrochromatography method for combined ion membranes, charactered in that the method comprises the steps of: packing a strip­shaped positive ion exchanging membrane into a channel, two ends of said positive ion exchanging membrane protruding on the two ends of said channel, one end of said channel being hermetically packed with a capillary used to a fluid output, one end of positive ion exchanging membrane is set into said capillary, and the other end of said channel being set into an anode pool containing anode electrolyte, into which an anode pole connected with an anode of a driving power supply is inserted; communicating one end of a negative ion exchanging membrane with said capillary and contacting with one end of said positive ion exchanging membrane, the other end of said negative ion exchanging membrane being inserted into cathode pool containing cathode electrolyte, into which a cathode pole connected with the driving power supply is inserted ; setting a detector on said capillary. Advantages provided by the invention include lower driving voltage, no bubble, good stability, convenient control, and lower cost. The invention can be used to liquid microanalysis.