Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1987-04-06
1989-06-27
Niebling, John F.
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
2041833, 204299R, 436173, 250281, 250288, B01D 5702
Patent
active
048427012
ABSTRACT:
A system and method for analyzing molecular constituents of a composition sample includes: forming a solution of the sample, separating the solution by capillary zone electrophoresis into an eluent of constituents longitudinally separated according to their relative electrophoretic mobilities, electrospraying the eluent to form a charged spray in which the molecular constituents have a temporal distribution; and detecting or collecting the separated constituents in accordance with the temporal distribution in the spray. A first high-voltage (e.g., 5-100 KVDC) is applied to the solution. The spray is charged by applying a second high voltage (e.g., .+-.2-8 KVDC) between the eluent at the capillary exit and a cathode spaced in front of the exit. A complete electrical circuit is formed by a conductor which directly contacts the eluent at the capillary exit.
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Olivares Jose A.
Smith Richard D.
Battelle (Memorial Institute)
Gorgos Kathryn
Niebling John F.
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