Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1993-11-08
1995-11-28
Niebling, John
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
204299R, G01N 2726, G01N 27447
Patent
active
RE0351024
ABSTRACT:
A capillary tube has a structure in its wall that permits ions to flow but no substantial amount of electrolyte to move therethrough. The structure therefore permits electrical contact between the electrolyte inside the tube and the outside environment without diluting the electrolyte. The structure forms only a small part of the side wall so that the tube retains its structural integrity and can be used in electrophoresis without requiring structural support. In the preferred embodiment, the structure is formed by drilling a hole in the side wall, filling the hole with glass powder and fused silica and heating the mixture to form a frit structure to plug the hole. The frit structure permits ions to flow but substantially no electrolyte to move therethrough. Electrophoretic samples exiting from the end of the tube are not diluted and can be continuously collected, such as on top of a moving plate.
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Huang Xiaohua
Huckaby Raymond T.
Zare Richard N.
Niebling John
Starsiak Jr. John S.
The Board of Trustees of the Leland Stanford Junior University
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