Radiant energy – Ionic separation or analysis – With sample supply means
Patent
1999-02-25
2000-10-31
Nguyen, Kiet T.
Radiant energy
Ionic separation or analysis
With sample supply means
H01J 4910
Patent
active
061406406
ABSTRACT:
A non-reactive electrospray needle structure that can be used with relatively low electrical potential introduced externally at a selectable location along the length of the needle structure. The electrospray device or apparatus includes a non-conductive tube with an inner diameter, with one end of the tube having a reduced inner diameter thereby forming a tip. The tube is configured to have a fracture in it, positioned a predetermined or selectable distance from the tip. An electrically conductive path, such as a wire or electrode, is provided external to the tube and proximate to the fracture. A collar surrounds the tube proximate the fracture. The electrically conductive path provides a voltage potential to charge the spray. The collar maintains the conductive path in place, seals the tube at the fracture, and provides structural strength. In one embodiment, the tube is packed with a binding material to form a column bed.
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Jarrell Joseph A.
Wittmer Douglas P.
Janiuk Anthony J.
Michaelis Brian
Nguyen Kiet T.
Water Investments Limited
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