Separation and concentration system for ionic compounds in sample, and method for analyzing ionic compounds using same

A system for separating and concentrating an ionic compound in a sample, the system comprising:

• at least one sample separation device;
• a flexible holder having a plurality of slots, wherein each slot is configured to have a sample separation device inserted therein, wherein the at least one sample separation device is inserted into a slot of the flexible holder;
• and
• an electrode for applying a voltage to the device,
• wherein the at least one sample separation device comprises:
• a separation portion;
• a first storage portion;
• and
• a second storage portion,
• wherein the first and second storage portions are positioned on opposing sides of the separation portion,
• wherein the separation portion is folded at a predetermined interval to form two or more discrete base units, wherein each of the two or more discrete base units includes a porous substrate, a pattern coating layer on one surface of the porous substrate and a reservoir formed in an area excluding the pattern coating layer and serving as a movement path, and
• wherein each of the first and second storage portions includes a support, an absorbent pad inserted into the support, a conductive ink layer positioned on one side of the absorbent pad, and a selective ion permeable layer positioned on the other side of the absorbent pad and configured to connect to the separation portion.