Method for separating ionic species using capillary electrophore

Details Method for separating ionic species using capillary electrophore Method for separating ionic species using capillary electrophore

1990-01-29

1992-04-14

Niebling, John

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

356344, 356412, B01D 5702, B01D 6142, G01N 2100

Patent

active

051045060

ABSTRACT:
A technique for separating, identifying and measuring ions in solution by capillary zone electrophoresis is described, which provides improved sensitivity and resolution of anionic species. The method involves subjecting a sample containing the ionic species a light-absorbing material and a quaternary ammonium salt to an electrical current in a capillary column causing the ions to elute according to their ionic mobility. The ionic species are detected and quantitated by UV/Visible photometric monitoring.

REFERENCES:
patent: 4414842 (1983-11-01), Small et al.
Foret, J. Chrom., 470:299-308 (1989).
Altria, Chromatography, 24:527-532 (1987).
Huang, Anal., Chem., 61:766-770 (1989).

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