Laser welded frit
AssigneeOptimize Technologies, Inc.
InventorMichael L Medley
Life of this patent
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Abstract
A method of forming a column (100 and 200) for use with an analytical chemical instrument. The method includes placing a frit (102 and 202) in proximity to a distal end (110 and 210) of a tube (104 and 204) having an internal bore (106 and 206) adapted to receive packing material (108 and 208) for selectively interacting with an analyte of interest in a sample. The method further includes laser welding the frit to the tube and inserting packing material within the internal bore of the tube. A column formed in accordance with this method.
Claims9
A column for use with an analytical chemical instrument, the column adapted to receive packing material for selectively interacting with an analyte of interest in a sample, the column comprising:
- (a) a tube having a bore adapted to receive a packing material and having a distal end;
- and
- (b) a frit for retaining the packing material within the tube, wherein the frit includes a porous portion that permits the analyte of interest to pass there through, and a substantially non-porous portion made up of a substantially uniform material;
- and
- (c) a laser weld coupling the frit to the tube, wherein the substantially non-porous portion of the frit defines the laser weld.
A column for use with an analytical chemical instrument, the column adapted to receive packing material for selectively interacting with an analyte of interest in a sample, the column comprising:
- (a) a tube having a bore adapted to receive a packing material and having a distal end;
- and
- (b) a frit for retaining the packing material within the tube, wherein the frit includes a porous portion that permits the analyte of interest to pass there through, and a substantially non-porous portion, wherein the porous and non-porous portions are made up of a substantially uniform material;
- and
- (c) a laser weld coupling the frit to the tube, wherein the substantially non- porous portion of the frit defines the laser weld.
Dependencies are inferred from the claim text.