Dual membrane annular helical suppressors in ion chromatography

Journal Article · Fri Feb 01 04:00:00 EST 1985 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac50001a038· OSTI ID:5965566

Dasgupta, P K; Bligh, R Q; Mercurio, M A

A dual membrane annular helical configuration is shown to be a highly efficient low dispersion suppressor for ion chromatography. The device contains one filament-filled membrane tube inserted inside another closely fitting membrane tube of the same type. The dual membrane assembly is coiled as a small diameter helix, the shape being retained by the filament. The column effluent flows in the annular space between the two membranes; regenerant flows through two separate channels, inside the inner membrane and through a jacket which surrounds the entire device. Compared to simple filament-filled membrane helices, these devices exhibit a substantially larger available membrane surface area per unit dispersion of an injected band. 20 references, 3 tables, 2 figures.

• Research Organization: Texas Tech Univ., Lubbock
• DOE Contract Number: FG05-84ER13281
• OSTI ID: 5965566
• Journal Information: Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 57:2; ISSN ANCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
ANNULAR SPACE
CHEMICAL ANALYSIS
CHROMATOGRAPHY
CONFIGURATION
DATA
DISTRIBUTION
EXPERIMENTAL DATA
INFORMATION
ION EXCHANGE CHROMATOGRAPHY
MATERIALS
MEMBRANES
NUMERICAL DATA
QUANTITATIVE CHEMICAL ANALYSIS
SEPARATION PROCESSES
SPACE
SPATIAL DISTRIBUTION
TRANSITION ELEMENT COMPOUNDS