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Electrochemically regenerated ion neutralization and concentration devices and systems
| Details |
Inventors: Anderson, Jr., James M.; Saari-Nordhaus, Raaidah; Sims, Carl W.; Gerner, Yuri E.;
Assignee: Alltech Associates, Inc. (Deerfield, IL)
Primary Examiner: Therkorn; Ernest G.
Assistant Examiner:
Attorney, Agent or Firm: Brinks Hofer Gilson & Lione
A system and method for electrochemically regenerated ion neutralization and concentration is disclosed. In one aspect of the invention, a system is provided comprising a HPLC column pump, a concentrator column, an analytical column, a suppressor, a detector, a mixed bed deionizing resin, a sample injector, and a neutralization cartridge. |
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DETAILED DESCRIPTION A system for electrochemically regenerated ion neutralization for use in ion chromatography comprising a HPLC pump, a concentrator column, an analytical column, a suppressor, a detector, a mixed-bed dionizing resin, a sample injection valve, a sample loop, a neutralization ion exchange cartridge wherein the suppressor and neutralization ion exchange cartridge each comprises: a housing, the housing comprising an effluent flow channel comprising chromatography material and the effluent flow channel adapted to permit fluid flow therethrough; a first and second electrode positioned such that at least a portion of the chromatography material is disposed between the first and second electrodes, and the fluid flow through the effluent flow channel is between, and in contact with, the first and second electrodes; and a power source connected to the first and second electrodes.
In a preferred embodiment of the system described above, the sample injection valve comprises a six-port valve.
A system for electrochemically regenerated ion concentration for use in ion chromatography comprising a HPLC pump, a concentrator column, an analytical column, a suppressor, a detector, a mixed-bed dionizing resin, a sample injection valve, a sample loop, a neutralization ion exchange cartridge wherein the suppressor and neutralization ion exchange cartridge each comprises: a housing, the housing comprising an effluent flow channel comprising chromatography material and the effluent flow channel adapted to permit fluid flow therethrough; a first and second electrode positioned such that at least a portion of the chromatography material is disposed between the first and second electrodes, and the fluid flow through the effluent flow channel is between, and in contact with, the first and second electrodes; and a power source connected to the first and second electrodes.
In yet another aspect of the invention, a method of ion chromatography by mobile phase neutralization and sample ion concentration is provided
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