Light-guiding flow cell technologies
AssigneeWaters Technologies Corporation
InventorsMichael O. Fogwill, Joseph D. Michienzi, Sebastien Besner, Brett G. Cook, Peter O'Brien
Life of this patent
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Abstract
A flow cell for a liquid chromatography detector comprises a substrate formed of a glass material; a fluidic channel extending through the substrate; and at least one gas filled region formed in the substrate along at least a portion of a length of the fluidic channel. A portion of the glass material separates the fluidic channel and the gas filled region. An interface between the gas filled region and the portion of the glass material separating the fluidic channel and the gas filled region enables total internal reflection of light propagating along the fluidic channel.
Claims20
A flow cell for a liquid chromatography detector, comprising:
- a substrate formed of a glass material;
- a fluidic channel extending through the substrate;
- and
- at least one gas filled region formed in the substrate along at least a portion of a length of the fluidic channel, wherein a portion of the glass material separates the fluidic channel and the gas filled region, and wherein an interface between the at least one gas filled region and the portion of the glass material separating the fluidic channel and the at least one gas filled region enables total internal reflection of light propagating along the fluidic channel.
A flow cell for a liquid chromatography detector, comprising:
- a substrate formed of a glass material;
- a fluidic channel extending through the substrate;
- and
- a reflective coating about a portion of the fluidic channel, wherein the reflective coating enables an internal reflection of light propagating along the fluidic channel.
A flow cell for a liquid chromatography detector, comprising:
- a substrate formed of a glass material;
- a fluidic channel extending through the substrate, the fluidic channel having an input and an output;
- and
- an integrated mirror at the input and/or the output, wherein the mirror enables an internal reflection of light propagating along the fluidic channel.
Dependencies are inferred from the claim text.