首页|An integrated dual-functional electrodialytic membrane suppressor for ion chromatography
An integrated dual-functional electrodialytic membrane suppressor for ion chromatography
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NSTL
Elsevier
An integrated dual-functional electrodialytic membrane suppressor (D-EMS) is proposed that can simultaneously conduct suppression of acid and base eluent. It consists of four chambers, equivalent to half an anion electrolytic membrane suppressor (EMS) plus half a cation EMS with typical sandwiched configuration via a bipolar membrane (BPM). Anion exchange membrane, BPM and cation exchange membrane are respectively used to isolate two central eluent channels from two outer regenerant chambers. A constant current source is used to power D-EMS. The device shows similar performance to a separate EMS in terms of suppression capacity (>= 80 mu eq/min, corresponding to 80 mM eluent at the flow rate of 1 mL/min) and the resultant suppressed background (similar to 0.75 mu S/cm and similar to 0.17 mu S/cm for anion and cation section of D-EMS, respectively). (C) 2022 Elsevier B.V. All rights reserved.
Ion chromatographyElectrodialytic membrane suppressorDual-functionalBipolar membrane
NSTL
Elsevier
