▎ 摘　　要

NOVELTY - The module has a first conductive layer (11), a first electrode layer (12), a first film layer (13), a flow channel (14), a second film layer (15), a second electrode layer (16) and a second conductive layer (17). The material of the first conductive layer is graphite or titanium. The material of the second conductive layer is graphite or titanium. The material of the first electrode layer is carbon nanotube, activated carbon, or graphene. The material of the second electrode layer is carbon nanotube, activated carbon, or graphene. The material of the first membrane layer is selected from one of anion exchange membranes and nanofiltration membranes. The material of the second membrane layer is selected from one of cation exchange membrane and nanofiltration membrane. USE - Capacitive deionization module used in ionized substance detection system (claimed). ADVANTAGE - The ionic substance and the organic substance are sorted through the combined structure of the electric double layer capacitor and the membrane material, so as to realize the quantitative detection of the ionic substance with high accuracy. The capacitive deionization module sorts ionic substances and organic substances through the combined structure of the electric double layer capacitor and the membrane material, thus eliminating the interference of the organic substances. The capacitive deionization module adopts the characteristics of the capacitor to adsorb ionic substances, and blocks the characteristics of organic substances by the membrane material, adsorbs the ionic substances into the electrode, whic simultaneously leaves the organic substances in the water. The capacitive deionization module separates organics and inorganics, and measures the sorted ionic inorganics, so that the ionic substances can be quantified with high accuracy. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) a capacitive deionization module used in an ionized substance detection system; (2) an ionized substance detection system; (3) a device for detecting ionic substances; and (4) a method for detecting ionic substances. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic sectional view of a capacitive deionization module. First conductive layer (11) First electrode layer (12) First film layer (13) Flow channel (14) Second film layer (15) Second electrode layer (16) Second conductive layer (17)