ELECTROCHEMICAL PRETREATMENT SYSTEM FOR LIQUID SAMPLE ANALYSIS

摘要

A system for pretreating sample streams including a concentrated matrix compound to neutralize the compound. The system includes an electrochemical membrane device (70) in which sample flows through a sample flow channel (73) of the device (70) separated from a matrix ion receiving flow channel (75) by an ion exchange membrane (76) preferentially permeable to ions of the opposite charge to the ions to be analyzed. The ionic species in the thus-treated sample are directed to an analytical system such as an ion chromatograph.