Patent ID: 9645124
Date: 2017-05-09
CPC Classifications: C25B,G01N,Y10T

Claim:
1. An eluent generator for generating an acid or a base comprising: (a) an ion source reservoir; (b) a remote reservoir for holding a solution comprising one of a cation-containing solution or an anion-containing solution, the remote reservoir supplying the solution to the ion source reservoir; (c) an acid or base generation chamber having an inlet port and an outlet port, the outlet port of the acid or base generation chamber configured to be fluidically coupled to an inlet of a chromatographic separator; (d) a charged first barrier disposed between the ion source reservoir and the acid or base generation chamber, the barrier substantially preventing liquid flow while providing an ion transport bridge for only ions of one charge, positive or negative; (e) a first electrode in electrical communication with the ion source reservoir; (f) a second electrode in electrical communication with the first acid or base generation chamber; (g) an aqueous liquid source in fluid communication with the inlet port of the acid or base generation chamber; and (h) a conduit for recycling solution from an outlet of the ion source reservoir to an inlet of the remote reservoir.